What is Inclined plane: Definition and 820 Discussions

An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load. The inclined plane is one of the six classical simple machines defined by Renaissance scientists. Inclined planes are widely used to move heavy loads over vertical obstacles; examples vary from a ramp used to load goods into a truck, to a person walking up a pedestrian ramp, to an automobile or railroad train climbing a grade.Moving an object up an inclined plane requires less force than lifting it straight up, at a cost of an increase in the distance moved. The mechanical advantage of an inclined plane, the factor by which the force is reduced, is equal to the ratio of the length of the sloped surface to the height it spans. Due to conservation of energy, the same amount of mechanical energy (work) is required to lift a given object by a given vertical distance, disregarding losses from friction, but the inclined plane allows the same work to be done with a smaller force exerted over a greater distance.The angle of friction, also sometimes called the angle of repose, is the maximum angle at which a load can rest motionless on an inclined plane due to friction, without sliding down. This angle is equal to the arctangent of the coefficient of static friction μs between the surfaces.Two other simple machines are often considered to be derived from the inclined plane. The wedge can be considered a moving inclined plane or two inclined planes connected at the base. The screw consists of a narrow inclined plane wrapped around a cylinder.The term may also refer to a specific implementation; a straight ramp cut into a steep hillside for transporting goods up and down the hill. It may include cars on rails or pulled up by a cable system; a funicular or cable railway, such as the Johnstown Inclined Plane.

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  1. B

    Velocity down an inclined plane

    Imagine u have a ball on top of an inclined plane. The ball is released, hence initial velocity is zero. Assume that air resistance and friction between the surface and ball is negligible. using kinematic equations, V2=2as, where a=gsinθ, θ is the angle of inclination of the plane and s is the...
  2. B

    Two masses on an inclined plane

    Hi, how would i go about finding/resolving forces on an inclined plane with one mass on top of another? Friction is neglected between the mass and the plane. But you need to find the minimum allowable coefficient of friction between the two blocks. the incline is at 30 degrees block a on...
  3. mr_sparxx

    Rolling motion on inclined plane: centre of mass acceleration, friction, torque

    Hi, When a circular section object (cylinder, sphere of radius r) rolls down an inclined plane (at angle theta) it experiences both linear and angular acceleration due to gravity. I have read multiple times that: mg sin(theta) - friction = m a where friction = Torque/r From there on...
  4. H

    Inclined Plane and Elevator with Acceleration

    Homework Statement An inclined plane, fixed to the inside of an elevator, makes a 40 angle with the floor. A mass m slides on the plane without friction. What is the acceleration relative to the block if the elevator is a)accelerating upwards .35g b)accelerating downwards .35g? c)constant...
  5. G

    Stopping distance inclined plane

    If the stopping distance with kinetic to static friction is: d=vi2/2ukg Then, What is the stopping distance equation on an inclined plane?
  6. S

    How can I accurately simulate collisions between circles and inclined planes?

    I am writing a 2D simulation that involves multiple circles colliding with inclined planes. I want to collision response to be as true-to-life as possible but have hit a bit of a snag. Depending on the velocity of the circles, when colliding with the inclined planes, they may either bounce...
  7. E

    Acceleration of Coasting Vehicle Down Inclined Plane

    This caught my interest after someone posted the question on a cycling forum of would a heavy and light cyclist have different accelerations down an inclined plane when coasting from a stop. Many people had observed that heavier cyclists do indeed have a greater acceleration, but I wasn't...
  8. D

    Inclined plane and inclined force-acceleration

    Homework Statement Hi, here is my problem: A sled of mass 8kg is on frictionless slope inclined at 35 degrees to the horizontal. It is pulled by a rope whose tension is 40N and makes angle 20 degrees with the slope. a)Resolve all forces, acting on the sled into components parallel and...
  9. C

    HELP: Friction on upward motion in an inclined plane

    Guys, I'm just bothered of my professor's answer in the problem we solved. Here are the given Given: Weight: 5000 N Coefficient: 0.4 Angle of the plane: 20º Solve for the required FORCE to move the box (5,000N) upward to the plane. This is the formula I used: Fn=Ff Fn(sin...
  10. M

    Newton's 3rd law- inclined plane

    Homework Statement Two packages at UPS start sliding down the 18° ramp. Package A has a mass of 5.26 kg and a coefficient of friction of 0.22. Package B has a mass of 11.67 kg and a coefficient of friction of 0.15. How long does it take package A to reach the bottom? (s=2.1 m) Homework...
  11. L

    How Do You Solve an Inclined Plane Problem Involving Friction and Force?

    Homework Statement A box is pulled up an incline which is 285 m long and in the process the box rises 16.7 m. The force pulling the truck is 18300 N. A) If there was no friction, what is the weight and mass of the box? B)If friction provides a force of 17,400 N, what is the force pulling the...
  12. C

    Magnetism, circuits, and an inclined plane

    Homework Statement This has a lot of parts, but I think I got the first few, or at least I'm on the right track. You have an inclined plane (30 degree angle, the ramp part is 3m) with a 1kg metal bar that is 2m long at the top (mu static = mu kinetic = 0.1). The sides of the plane are lined...
  13. C

    What is the velocity and kinetic energy of a rolling disk on an inclined plane?

    Homework Statement A solid disk of mass m = 2.2 kg and radius r = .20 m starts from rest at a height h = 3.2 m and rolls without slipping down an incline plane with an angle of 30 degrees above the horizontal. a What is the linear velocity of the disk at the bottom of the incline...
  14. B

    How Does an Inclined Plane Affect Mechanical Energy and Work?

    A block of mass M is being puled up an inclined plane at a constant speed, by an attached rope that exerts a tension T. The block is pulled a distance L. The plane makes an angle theta with the horizontal, and the coefficient of kinetic friction between the block and the incline is uk. a)...
  15. T

    Pushing a box up an inclined plane

    I need to calculate the efficiency of a inclined plane if a 60 pound box is being pushed up it... The inclined plane is 16 feet long (The plane itself, not the base) and it is raised up 4 feet high. Homework Equations efficiency= useful work output/total work input w=fd w= work...
  16. L

    Solve Inclined Plane FNET Homework: Time to Stop Skier

    Homework Statement A sight seen on many bunny hills across ontatrio is young skiers pushing on ski poles and gliding down a slope until they come to a rest . Obeserving from a distance , you note a young person (approximatly 25kg) pushing off with the ski poles to give herself an intial...
  17. T

    Acceleration of inclined plane

    Homework Statement There is a cube of ice the top of inclined plane (for 20 degress) with height 4 meters. The inclined plane can move without friction along the surface. The mass of the ice is 1/4 of the mass of inclined plane. Calculate the acceleration of the inclined plane, when the ice...
  18. J

    Inclined plane (ranking normal force)

    I'm having problems with my initial approach on this problem: The figure below shows four choices for the direction of a force of magnitude F to be applied to a block on an inclined plane. The directions are either horizontal or vertical. (For choices a and b, the force is not enough to lift...
  19. L

    Can someone explain the inclined plane picture to me?

    Hello everyone, Right now I'm working on an inclined plane problem. "a) The worker exerts a force(F) of 86 N. How much work does he do? (b) How much work is done by gravity? (Be careful with the signs you use.) (c) The coefficient of friction is µ = 0.20. How much work is done by...
  20. D

    How Does Friction Impact the Distance an Object Travels Up an Inclined Plane?

    Homework Statement 30g object slides on slope of 20 degrees, with kinetic coefficient of .20. Object is launched up from a spring at bottom of slope, which was compressed by 10 cm. Spring constant = 25 N/m. Find the total distance object travels up slope before reversing direction.Homework...
  21. Y

    Motional emf problem on inclined plane

    Homework Statement a straight horizontal rod slides along parallel conducting rails at an angle with the horizontal of 30 degrees (inclined plane). The rails are connected at the bottom by a horizontal rail so that the rod and rails form a closed rectangular loop. A uniform vertical field...
  22. E

    Inclined plane problem, weight of subject

    Homework Statement This man has mass 'm' and the angle of the plane is 'x'. The inclined plane is frictionless. He is standing on a scale which is placed on top of the blue wedge, what weight will the scale measure?Homework Equations The Attempt at a Solution If the man was standing on a...
  23. R

    Frictionless inclined plane help

    Need Help ! Homework Statement Two bodies, A and B arrive at the base of a fricitonless inclined plane with equla momenta of magnitude p. mb=3ma. The ratio of the max. distance Db that B travels up the plane to the max. distance Da the A travels up the plane is : Db=Da ? is that correct ...
  24. M

    Motion of 2 object on an inclined plane

    Homework Statement C:\Documents and Settings\Momar\My Documents\Momar\q.bmp Homework Equations The Attempt at a Solution I think that A will fall off the top of B, but i am not sure at all
  25. B

    How Far Will Boom-Boom Slapshot Travel in Snow After Sliding Down an Icy Hill?

    Boom-Boom Slapshot, Canadian hockey star, slides down a 50m long ice covered hill on his skates. The frictionless hill is inclined at 35° to the horizontal. Once he reaches the bottom of the hill, the ice is covered with deep snow that has a coefficient of kinetic friction of .50 How far into...
  26. J

    Gravitational force on inclined plane

    Homework Statement You place a box weighing 265.5N on an inclined plane that makes a 43.2 degree angle with the horizontal. Compute the component of the gravitaltional force acting down on the inclined plane. Homework Equations m x g x cos(degree) The Attempt at a Solution 265.5...
  27. I

    Acceleration and Tension of two masses on an inclined plane with friction.

    Homework Statement In the attachment there is a drawing of the situation. Mass one = 4kg and Mass two = 5kg The coefficient of friction between mass one and the inclined plane = 0.24 Find the magnitude of the acceleration of the masses and the tension in the cord. Homework Equations Fk=...
  28. F

    Mass sliding down an inclined plane (True/False)

    **Mass sliding down an inclined plane (True/False) Homework Statement A block of mass M is sliding down an inclined plane and is accelerating. Which of the following statements are true? The acceleration of the block is dependent upon the angle of the inclined plane The normal force...
  29. S

    How Do You Calculate Tension and Normal Force on an Inclined Plane?

    A 1140 kg car is held in place by a light cable on a very smooth (frictionless) ramp, as shown in the figure. The cable makes an angle of 31.0 degrees above the surface of the ramp, and the ramp itself rises at 25.0 degrees above the horizontal. Find the tension in the cable. (T=?) How...
  30. C

    Find Total Force & Direction on Sliding Block | Inclined Plane Help

    http://i98.photobucket.com/albums/l263/Rampalski/randomlabel.png Using that picture above and this data... A block of mass M slides down a plane at an angle of 37o to the horizontal. The coefficient of kinetic friction = 0.20. The horizontal lines in the picture represent magnitude of forces...
  31. S

    Calculate power with v on inclined plane with miu

    Homework Statement please advise how to solve. seems i can't without d given, or t! a man drags a 130 kg object down an inclined plane at a speed of 1.40m/s The coefficient of friction between the object and the inclined plane is 0.800 and the angle of inclination with the horizontal is...
  32. Gamma

    Job Skills Preparing for an Inclined Plane Teaching Job Interview

    Hi every one, For an private school teaching job interview, I need to prepare and deliver a 15 minute lesson on "weight on inclined plane". The level of this lesson, I believe, is AP Physics. I am thinking of preparing the notes and deliver in the traditional method. Any ideas and...
  33. P

    Calculating Acceleration of 2 kg Ball on Inclined Plane

    Homework Statement An inclined plane is 30 degrees above the horizontal with a 2 kg ball at the top. Assume no friction or air resistance, and assume acceleration due to gravity is 10 [m/s^2]. Find the acceleration of the ball in the vertical and horizontal. Homework Equations F = ma...
  34. L

    Two masses on inclined plane

    Two masses are being pulled up a 30 degree incline by a force F parallel to the incline. The velocity is constant and up the incline. The force is applied to a 200 kg mass and a string connects the 200 kg mass to a 150 kg mass. The coefficient of kinetic friction is 0.2. The force F = ? So I...
  35. S

    Help Kinetic Energy / Inclined Plane

    1) A 1.0-kg object moving in a certain direction has a kinetic energy of 2.0 J. It hits a wall and comes back with half its original speed. What is the kinetic energy of this object at this point? Attempt at solution: 1/2mv^2 = 1/2m(0.5)v^2 2) An object of mass 10.0 kg is released from the...
  36. E

    Center of mass on inclined plane

    Homework Statement A box with its center of mass off-center as indicated by the dot is placed on an inclined plane. In which orientation does the box tip over? Homework Equations Teacher didn't even mention anything related to this The Attempt at a Solution Since the CM was at...
  37. C

    How Does Static Friction Affect a Sled on an Incline?

    Homework Statement A sled weighing 250 N rests on a 15° incline, held in place by static friction (Figure 5-61). The coefficient of static friction is 0.5. a)What is the magnitude of the static friction on the sled? The sled is now pulled up the incline at constant speed by a child...
  38. P

    Can Formulas for Acceleration on an Inclined Plane be Written without Friction?

    Assume there is no friction in the system. Can anyone write formulas for acceleration of both the small object and the triangular object? (Gravity is downwards, no other force such as air drag etc.) http://img83.imageshack.us/img83/6036/asdasdcf6.png
  39. A

    What can be calculated from a trolly rolling down an inclined plane?

    Homework Statement Not a problem but an experiment were I have not been told what I need to calculate. I have a trolley rolling down an inclined plane. We recorded the speed(light gates) at two different points and all distances involved(height of plane, distance between gates etc). We did...
  40. S

    Inclined plane and elapsed time

    Homework Statement A block is given a initial speed of 5.0 m/s up the 20° plane. (a) How far up the plane will it go? (b) how much much time elapses before it returns to its starting point? Homework Equations I think V= u + at s=ut t 1/2at^2 v=d/t The Attempt at a Solution...
  41. J

    Free body diagram, inclined plane, and finding V from x vs t graph

    Homework Statement Draw and label the free body diagram of a block on a plane inclined 30 degrees from the horizontal. There is friction and the block is stationary. The magnitues of the vectors must be correctly scaled and the directions correct. And then my other question is how to find...
  42. P

    Task with ball, cyllinder and inclined plane - problem -help

    Hello everybody! ;) I've got problem with task below, I've got few days to solve it and I've got some troubles: On inclined plane with variable angle of inclination we set cylinder and ball on the same height above the ground. The friction factor for both objects comes to 0,1 - it's the...
  43. J

    A Block Slides Down an Inclined Plane

    Homework Statement A block slides down an inclined plane with friction. It is sliding at a constant speed. The only forces acting on the block are its weight and contact forces due to the incline. The inclined plane is stationary. The inclined plane is a wedge that is highest on the left...
  44. 1

    Inclined plane + Inclined force. Normal reaction force = ?

    ok I'm desperate now lol n this is my first time on PF. I've just had an exam and I'm sure i got this question wrong. But i'd like to know: the normal reaction force and the tension/Force F. The question is: There is this object that has a weight of 20N. It is on an inclined plane that is 30...
  45. U

    Coefficient of friction along an inclined plane

    Homework Statement A horizontal force of 2N is just sufficient to prevent a block of mass 1kg from sliding down a rough plane inclined at arcsin 7/25 (=16.3 degrees) to the horizontal. Find the coefficient of friction between the block and the plane and then acceleration with which the block...
  46. M

    Inclined plane and kinetic energy

    if a block of mass m is to slide up an inclined plane to at least a height of h (with no friction), what is the minimum kinetic energy it must have? no numbers are included...just supposed to know an equation to get the answer.
  47. R

    Inclined plane with massless, frictionless winch

    A 100 kg box is pulled up an inclined plane by a massless, frictionless winch to which it is attached by a massless rope. The plane makes an angle of 45° with respect to the horizontal. The coefficient of friction between the box and the plane is μ = 0.25 (with μs = μk). The winch has a radius...
  48. H

    General question about accleration of box on inclined plane

    Homework Statement Is it possible for a box going down on a frictionless incline plane to have not a negative accleration but positive accleration? Please help, it is confusing. Homework Equations The Attempt at a Solution
  49. S

    Projectile motion on an inclined plane

    Homework Statement A projectile is fired up an incline (incline angle ϕ) with an initial speed vi at an angle θi with respect to the horizontal. Homework Equations For what value of θi is d a maximum, and what is that maximum value? (Use v_i for vi, phi for ϕ, and g as appropriate. ϕ...
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