What is Incline: Definition and 989 Discussions

The Duquesne Incline () is a funicular located near Pittsburgh's South Side neighborhood and scaling Mt. Washington in Pennsylvania, United States. Designed by Samuel Diescher, the incline was completed in 1877 and is 800 feet (244 m) long, 400 feet (122 m) in height, and is inclined at a 30-degree angle. It has an unusual for United States (but standard for Finland, Mongolia and the former-USSR) track gauge of 5 ft (1,524 mm).

View More On Wikipedia.org
Recent contents Top users
  1. M

    Calculating tq for incline / best practices for gear reduction

    I am calculating the amount of torque required to give mobility to a 7000 lbs oilfield service vehicle. The vehicle has a rectangular frame with fairly even weight distribution. The radius, from wheel center to edge of tire is 11.5 inches. These tires are treaded with various half-inch tall...
  2. L

    Conservation of Energy on a frictionless incline

    Homework Statement A 259 g textbook slides up a 22.1° incline that is 2.55 m long. Using conservation of energy and assuming the incline is frictionless, what minimum initial speed is needed to accomplish this? mass = 0.259 kg Θ = 22.1° length of incline = 2.55 m Homework Equations KE =...
  3. J

    What is the change in kinetic energy of the crate pulled up a rough incline?

    Homework Statement A crate is pulled up a rough incline. The pulling force is parallel to the incline. The crate is pulled a distance of 5.79 m. The acceleration of gravity is 9.8 m/s^2 theta=23.4 degrees mass= 8.91kg Force pulling on box= 142N coefficient of friction= 0.292 Initial velocity of...
  4. J

    Dynamics how to calculate maximum height on incline

    Homework Statement A 5.0kg block initally traveling at 11m/s moves up a 30degrees incline. A frictional force of 9.4N acts on the block as it moves up the incline. What maximum vertical height, h, will the block reach? m = 5.0kg, vi = 11m/s, vf = 0m/s, Fr = 9.4N, Homework Equations...
  5. ChrisBrandsborg

    Solve Unwinding Yo-Yo Homework: No Slipping Allowed

    Homework Statement We consider a yo-yo rolling down an incline, sloping with angle θ relative to horizontal. The yo-yo starts a distance d up the incline. The string is attached to a hook further up the incline, in such a way that it unwinds as the yo-yo rolls down. The yo-yo can be thought of...
  6. W

    Sphere rolling down incline then up incline?

    Homework Statement A sphere of mass M and radius R is not necessarily solid or hollow. It has moment of inertia I = cMR^2 . The sphere starts from rest and rolls without slipping down a ramp from height H. It then moves back up the other side with height h, but now with no friction at all...
  7. J

    Calculating force needed to push sled down incline

    Homework Statement Calculate the force required to push a 22kg sled down a 6 degree hill and have an ending speed of 60km/hr after traveling 75m when the coefficient of friction is 0.20. Homework Equations Fnet= ma (V2)^2 = (V1)^2 + 2a(d2-d1) Ff= uN W= mg The Attempt at a Solution I'll use @...
  8. A

    Incline problem with friction; alternative solution

    Homework Statement There is an example problem in a textbook I'm looking at where they solve a simple incline-mass problem (friction included) using work-energy. We are given the mass 40kg, the length of the slide is 8 m, the incline is 30 degrees, the coefficient of kinetic friction is .35...
  9. R

    Moment about a point in an incline plane

    Homework Statement Force F = 460 N acts perpendicular to the inclined plane Determine the moment produced by F about point A. Enter the x, y, and z components of the moment separated by commas. Homework EquationsThe Attempt at a Solution r(CA)=4j-3k u(CA)=4/5j-3/5k r(CB)=-3i+4j...
  10. Lauren0619

    Newton's Laws - Incline. Do I have the right idea?

    I am hoping that I can have someone look over my answers. I have provided what I think is necessary to be appropriate posting, including the questions and attempts at all my answers. I would just like some feedback that I am correct in my answers. Thank you! This is an overview that all the...
  11. P

    Statics Double-Mass Pulley Incline Problem

    Homework Statement Homework EquationsThe Attempt at a Solution I'm having trouble coming up with the equations for the system. At first, I thought that m2 = m1sin(theta), but that's not correct. How can I set this problem up?
  12. Simon Hall

    Sign Convention for Projectile Motion on an Inclined Plane

    Hi, I have a quick question about projectiles on an inclined plane. Specifically, when the projectile is launched down an inclined plane. Is it not possible to use your choice of sign convention? If the projectile is moving from left to right like so: V ...V .....V ....__ V__ Could I not...
  13. onemic

    Find the angle of an object on an incline (static friction)

    Homework Statement At a construction site, a small crane is raising two boxes of nails on a plank to the roof. One box has already been opened and is half full, while the other box is new. The boxes, including the nails weigh 10kg and 20kg, respectively, and are the same size. If the...
  14. J

    Incline angle for accelerating cart and Tensions in strings for a suspended mass

    Homework Statement Hi all, I have solved these problems just wanted to see if it's all ok problem 1: a trolley starts at the lowest point of a diagonal plane with a 20m/s speed. Its acceleration is 4m/s^2 going downhill, the trolley goes up then slows until it reaches 0 speed and then goes...
  15. Tyrannosaurus_

    Relate inclined plane's angle of incline to FBD's weight COM

    Please show me the relationship that proves how an inclined plane's angle of incline, θ, is equal to the angle used to find the components of gravity force. I know that the angles are the same, but I'd like a way to show it. Thanks!
  16. Jeff Long

    Real World Gravity on an incline question

    Hi, I'm brushing up on my physics, and I have a real world problem I've chosen to solve! First the Word Problem part of it, then the Physics after that... I have a 3000 lb. Recreational Trailer that I wish to put on my driveway on the side. The driveway is at a 10 degree angle from level...
  17. J

    MHB Force on 10 Kg Block on 51° Inclined Plane

    A 10 Kg block lies on a smooth plane inclined at 51 degrees. What force parallel to the incline would prevent the block from slipping?
  18. A

    Static friction vs. Normal force on an incline

    I have two surfaces that have a coifficent of friction of .6. Disregarding mass (if possible) at what angle would the force of static friction and the normal force be equal
  19. S

    Projectile hitting the incline plane horizontally

    Homework Statement A projectile is thrown at angle θ with an inclined plane of inclination 45o . Find θ if projectile strikes the inclined the plane horizontal Homework Equations Taking x-axis along the incline and y-axis perpendicular to incline.[/B] Vx=ucosθ - gsint(45)t Vy=usinθ -...
  20. P

    Sphere striking an incline (not asking for solutions....)

    The sphere is released at a height H above a fixed inclined plane, as shown in the attached figure. The coefficient of restitution at impact is e>0 (that is the sphere leaves the surface just after impact), the coefficient of friction between the sphere and the plane is \mu. I need a...
  21. N

    How Do You Calculate Forces on a Crate on an Inclined Plane?

    Homework Statement Crate of mass m is pushed horizontally with force F up an inclined plane of θ from ground. The plane has a friction coefficient of μ. a) draw free body diagram of crate b) derive expression for normal force c) derive expression for acceleration *** Use ONLY m, g, F, μ, θ...
  22. A

    3 masses on an incline (connected)

    Homework Statement Consider the three connected objects shown in Figure P5.88. Assume first that the inclined plane is friction- less and that the system is in equilibrium. In terms of m, g, and u, find (a) the mass M and (b) the tensions T1 and T2. Now assume that the value of M is double the...
  23. P

    Ball rolling down an incline gaining mass

    Homework Statement A snowball, initially of mass m, slides down a slope inclined at an angle φ with respect to the horizontal. As it moves, the mass of additional snow Δm = αx that it accumulates is proportional to the distance traveled x. Write the differential equation of translational motion...
  24. A

    Calculate Acceleration, Friction & Speed on 30° Incline | Block Homework

    Homework Statement 3.00-kg block starts from rest at the top of a 30.0° incline and slides a distance of 2.00 m down the incline in 1.50 s. Find (a) the magnitude of the acceler- ation of the block, (b) the coefficient of kinetic friction between block and plane, (c) the friction force acting...
  25. D

    What is the final linear speed of a basketball rolling down an incline?

    Homework Statement The image above shows a basketball (a thin spherical shell I=⅔ mR^2) rolling don an incline of height 8.4 m. If the ball is already rolling with an initial linear speed of 3.0 m/s then what will be the final linear speed when it rolls off the incline? Homework Equations I =...
  26. L

    Coefficient of Static Friction = tan (angle of incline)

    Homework Statement I am trying to prove that the coefficient of static friction is equal to the tan of the angle of incline. (You can find the proof of this from ) I set the angle of incline as my independent variable and had an angle range from 10 to 37.5 degrees. After setting the slope to...
  27. B

    Kinetic Friction and Incline for a Car

    Homework Statement Homework Equations friction:[/B] f = μN incline angle: θ = arctan(1/10) summation of forces in y: N - mgcosθ = 0 summation of forces in x: -f - mgsinθ = ma (?) The Attempt at a Solution For this problem, I set the x-axis going up the incline and the y-axis normal to said...
  28. Blockade

    Are the sum of all forces written correctly for this system?

    Can someone check if my Sum of All Forces is setup correctly? Problem: Diagram: http://puu.sh/o6pLY/285d7b12c1.jpg Sum of all Forces:
  29. Blockade

    Can someone check if this forces problem on an incline

    To me the force P that pulls the bottom block up the incline seems a little low. Can someone confirm with my setup and work in brown is correct? Thank you. Problem: Work:
  30. E

    Conservation of Momentum on Inclined and Flat Surfaces

    Would momentum be conserved on a cart if in one situation it is on an incline and the other it is on a flat surface(assuming it is pushed) I am confused because I thought that since gravity is an internal force, it is a conservative force. But then the final velocity of the cart would be...
  31. J

    How do I calculate the normal force on a box on an inclined plane?

    Homework Statement A 20kg box has a static coefficient of friction of 0.28. If a force of 200N is applied at an angle of 45deg, is the box able to move. Explain why once the static friction is overcome, the frictional force decreases and the box moves easier. Homework Equations F=m*a Ff=μFN...
  32. D

    Can someone give me some hints for this incline problem?

    I am sorry, I generally would show some work but I have no clue on how to start off to find angle theta. The answer is given below and I have to get it. I don't know at all how to approach this problem and unfortunately I am not too strong on my trig identities either but I will try. May some...
  33. 0

    Coefficient of static friction between load and incline

    Homework Statement A 1790N force pull a 266kg load up a 17º incline. what is the coefficient of static friction between load and incline. Homework EquationsThe Attempt at a Solution Tried several times on notebook but I haven't seemed to solve the problem.
  34. Asleky

    Dynamics: Incline Slope Derivation Simplification

    Homework Statement No official problem, just a study guide fill-in-the-blanks with an extended simplification blank. Basically, no values were given, and it is a standard block on a standard slope with a north-east applied force pushing down on the block (not parallel to horizontal or vertical...
  35. A

    How far does the block travel up the incline?

    Homework Statement In the figure, a block of mass m is moving along the horizontal frictionless surface with a speed of 5.70 m/s. If the slope is 11.0° and the coefficient of kinetic friction between the block and the incline is 0.260, how far does the block travel up the incline? Homework...
  36. L

    How to show how speed varies with incline, and with Gear ratio

    Hey guys, I'm having difficulty with my university project which is to build an electric bike. My design is to have a friction wheel attached to the shaft of my 800W 2800rpm electric motor which is rated at 2.8Nm. I have two issues with my spreadsheets at the moment. Can someone please help...
  37. D

    How Far Will a Block Slide on an Incline with Friction?

    Homework Statement A block is sliding with an initial velocity of 7.3 m/s along a frictionless horizontal surface when it then goes up an incline of 51.5 degrees that does have friction. If the kinetic friction coefficient is 0.1 then how far along the incline (hypotenuse) will the object...
  38. D

    Friction on an incline and velocity

    Homework Statement A block is sliding with an initial velocity of 7.3 m/s along a frictionless horizontal surface when it then goes up an incline of 51.5 degrees that does have friction. If the kinetic friction coefficient is 0.1 then how far along the incline (hypotenuse) will the object...
  39. N

    Concrete Block Incline acceleration question

    Homework Statement A concrete block of mass 25kg is placed on a smooth slope that makes an angle of 30 degrees with the horizontal. Ignoring the effects of air resistance, calculate a) the acceleration of the block as it slides down (g = 9.81 ms-2) b) the distance the block moves in 3 seconds...
  40. FruitNinja

    Time it takes for block to slide down an incline in elevator

    Homework Statement MECHANICS: Given Theta, L, M, and acceleration of elevator relative to ground. Find the time it takes for the block to reach the end of the incline. Here is a diagram: http://k-elahian.com/tmp/nip.PNG Homework Equations f=ma kinematics relative acceleration The Attempt...
  41. putongren

    Pulley problem with incline plane

    Consider two blocks connected by an ideal rope that passes through an ideal pulley fixed on the corner of the wedge as shown in the figure. The blocks have masses m1 and m2. The block of mass m1 is on the incline surface (which is frictionless) while the block of mass m2 hangs up in the air...
  42. DeldotB

    Sledding Down a Hill - Speed Calculation

    Homework Statement Say you push a sled of mass m up a hill that is angled upwards at a certain angle \theta at a constant velocity. The hill has snow on it offering a friction force that is equal to 30% of the sleds weight. If you pushed the sled down the hill with the same amount of force...
  43. B

    Mass on Incline: Kinetic & Potential Energy

    Homework Statement Attached Homework Equations kinetic energy = (1/2) m v^2 potential energy = mgh The Attempt at a Solution Did I do this correctly, At the top, kinetic energy is 0 since it starts at rest. At the bottom we choose the potential to be zero So using conservation, mgz=...
  44. RoboNerd

    Finding final speed of object on incline

    Homework Statement An object of mass m is allowed to slide down a frictionless ramp of angle Θ, and its speed at the bottom is recorded as v. If this same process was followed on a planet with twice the gravitational acceleration as Earth, what would be its final speed? Multiple Choice...
  45. Biker

    Will the Block Slide on an Accelerating Inclined Plane?

    Homework Statement I have an incline with a degree of Alpha and it is with friction that is equal to (Us = tan theta) It is accelerating to the right. Prove that this equation if it is true then the block will slide. a > g tan(Theta - Alpha) The Attempt at a Solution That was my thought of...
  46. I

    Where brick hits ground after sliding off a roof w/ friction

    Homework Statement Brick is sliding off a roof, starts at the peak of the roof (7.0 m above ground), slides down roof with kinetic friction value of 0.28, very edge of roof is 4.0 m above ground. Where does the brick land on the ground? Please see image - http://imgur.com/wNdtlWD Homework...
  47. S

    3 pulleys - 2 masses on incline plane

    Homework Statement http://tinypic.com/r/qs9q4o/9 http://tinypic.com/r/qs9q4o/9 Verify that the log will move up the ramp under the given conditions Homework EquationsThe Attempt at a Solution m1 = 220 m2 = 130 mu = 0.4 theta = 25 g = 9.81 N = (m1*g)*cos(theta)1) m2g – T = m2a Forces...
  48. G

    Find the acceleration of an object climbing an incline....

    Homework Statement The only given data is that the incline is 60 degrees steep. I also presumed that there is friction. I made an attempt to solve the problem and would like to know if it is correct. Homework Equations Fnet=m*a Ffk-kinetic friction force k-friction coefficient The Attempt at...
  49. N

    Work and Energy and Friction

    Homework Statement 1) According to an object's distance vs. force (parallel) graph, what is the work done in this process as the object moves from 2 m to 8 m? 2) a book is pushed up an 8 degree inclined plane with an initial speed of 11 m/s. If the coefficient of kinetic friction between the...
  50. H

    Homework Question: Forces on an incline

    A 10.0 kg object is released from the top of an incline with a height of 1.00m. The incline makes a 15.0 degree angle with the horizontal. If the speed of the object is measured to be 3.00m/s at the bottom of the incline, what was the constant frictional force (Fk) along the incline? I have...
Back
Top