Inclined Definition and 1000 Threads

Homework Statement A skateboarder slides down a frictionless ramp inclined at an angle of 30° to the horizontal. He then slides across a frictionless horizontal floor and begins to slide up a second incline at an angle of 25° to the horizontal. The skateboarder starts at a distance of 10 m from...

"A loaded penguin sled weighing 69 N rests on a plane inclined at angle θ = 22° to the horizontal. Between the sled and the plane, the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.20. (a) What is the minimum magnitude of the force , parallel to the...

Homework Statement A block is given a push up an inclined plane with an initial velocity. At what time will the speed of the block be equal to the initial velocity again? No varialbes are given. Homework Equations v= v(initial) + at The Attempt at a Solution The final...

I need to experimentally find gravity using information from a lab we finished last week. Should I not be getting 9.8 m/s² at each angle or am I doing something wrong? And if I should indeed be getting ≈9.8 m/s² as my y-acceleration, can you point me in the right direction?

Homework Statement A 1160 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 normal force along...

Homework Statement I need a little help here. 2. What could be the absolute largest acceleration we could obtain in this experiment? (just look at the equation you derived in lab).We are working with an inclined plane set at15.86 degrees. The ball is solid and weighs 67 grams The diameter of...

Greetings! This is my first post on this forum :) ("Fasit" means solution in Norwegian) Homework Statement Inclined plane, 30 degrees from horisontal Two boxes tied together. BoxA = 4 kg, friction coefficient = 0,25 BoxB = 8kg, friction coefficient = 0,35 Box A is closest...

Suppose a box is sitting, motionless, on an inclined plane which makes an angle \theta with the horizontal. If I'm not mistaken, if one writes out Newton's law in the y direction (if +y is up), one gets N \cos \theta - mg = 0; i.e., N = mg \sec \theta. However, if you ROTATE the coordinate...

Homework Statement Suppose the angles on an inclined plane are 60*(left-hand side) and 20* (right-hand side). If the left-hand mass is 2.1 kg, what should the right-hand mass be so that it accelerates downslope at 0.64 m/s/s? Homework Equations F=ma The Attempt at a Solution...

Say I launch an object (a cart) up a frictionless inclined plane at an angle of 'theta' to the horizontal. Question: What would be the acceleration of the cart right after it is launched? My guess at the answer: 9.81*cos(theta) since the cart is launched at an angle. BUT I'm not sure...

Homework Statement A homogenous thin cylinder is put on an inclined plane (angle of elevation is α). The coefficient of friction is \mu . What is the speed of the centre of the mass of the cylinder and it's angular velocity at distance l from the start of motion. Homework Equations...

Homework Statement A body of weight W rests on a rough inclined plane and a force P acting at angle \alpha with the inclined plane just prevents the body from sliding down . If the inclined plane makes an angle \phi with the horizontal , prove that P = W\frac{sin(\phi -...

Hi, I'm facing a pretty silly problem and I will appreciate if you can help me. I face the following diagram: http://img808.imageshack.us/img808/6273/inclinedplane.jpg Forget about the all the missing values in the painting(like that cart's mass, the value of θ, etc..) they are...

can i say normal force acting on the object perpendicular to the surface is the frictional force?? because if the normal force is great enough, the object will not slide down...so, can i say frictional force is normal force? help me...thank you

Okay, I am currently reading about motion on inclined planes and how the normal force acts directly perpendicular to the surface of the plane and how the gravitational force, obviously, acts downwards. Since the two forces are not inflicted in opposing directions, we split the gravitational...

Homework Statement (Irodov - Problems in General Physics - 1-31) A ball starts falling with zero initial velocity on a smooth inclined plane forming an angle α with the horizontal. Having fallen the distance h, the ball rebounds elastically off the inclined plane. At what distance from the...

So, this particular plane is angled so that a certain object will roll at a constant acceleration of 2 m/s each second. The object's initial velocity will be zero and in one second its velocity will be 2 m/s, but will only have traveled 1 m during that duration between zero and one seconds. Is...

Lets say I have an inclined plane and I roll a solid cylinder down it and slide a brick down it. And let's say I slide the brick down on oil,Or better yet I slide a superconductor down and have It float above bar magnets. The superconductor moving down the plane will always beat the...

Homework Statement Two blocks of equal mass are connected by a rope of negligible mass that is passed over a frictionless pully. The angle made by the horizontal plane and the ramp is 30 degrees. a) If neither block moves, what is the required coefficient of static friction to keep the...

Ice block on inclined plane-- easy problem! I'm pretty sure I did this correctly, but my answers are different from those given in the back of the book (which our TA warned us were frequently incorrect), so I thought I'd ask you guys if I made any obvious mistakes. Homework Statement A...

Homework Statement If the left hand slope makes a 60 degree angle and the right hand slope makes a 20 degree angle. the left hand mass is 2.1 kg, and the right hand mass is unknown. what would the right hand mass be given a downward acceleration of .64 m/s^2. ? upslope at .76 m/s^2...

For my classes I want to prepare this experiment http://fizyczny.net/viewtopic.php?t=28422 But of course I need to collect some data and explain why is it so. I thought about gravity and torque and that ball inside works as lever arm. Do you have any ideas?

Hello guys How can I calculate the following stiffness of the springs/suspensions in the case of inclined suspension (angle between suspension and axle)? I know that the lateral separation of the springs causes them to develop a roll resisting moment proporcional to the difference roll...

Homework Statement Homework Equations All the usually relevant circular motion equations involving θ, I, ⍺, τ and ω The Attempt at a Solution I've tried to work from the energy of the cylinder (Using E[SIZE="1"]k = K[SIZE="1"]trans + K[SIZE="1"]rot) and equating the energy to...

Hi, I have a terrible time when solving Inclined Plane problems when it comes to dividing the weight component into two. I can't see why, to find the perpendicular component I do the cos Theta of the weight and the parallel component I do the sin Theta of the weight. Can anyone, (maybe on...

Hello everyone. I think I have almost understood the third one of Newton's motion laws but I have some doubts: Let us think an inclined plane block located on a surface, there is a box on it and assume there is no friction neither between the surface and block nor between the block and the box...

http://imageshack.us/photo/my-images/194/inclinedplane.png/ 1.Homework Statement The block is released from rest with the spring in the unstretched position. The block moves 10 cm down the incline before coming to rest. Find the coefficient of friction between the block and the incline...

Homework Statement The cylinder is being pulled up the plane by a block. I've found that it IS rolling without slipping, and the acceleration is 5.00156 m/s^2. Homework Equations a=R[alpha] The Attempt at a Solution I've heard that the angular acceleration is the linear...

This isn't really a numerical question, just a conceptual questoin. I wanted to know why if you have an object rolling down an inclined plane, you can just choose to put the pivot point anywhere. This is because I see problems where one thing is solved using F*R=I\alpha And I also see when...

Homework Statement A 5kg block slides down an inclined plane at constant velocity. If the angle of inclination is 22 degrees, find the coefficient of friction. Homework Equations F=ma trig The Attempt at a Solution I'm only able to find the normal force, i suppose i could also use...

Homework Statement A pendulum hangs from an inclined wall. Suppose that this pendulum is released at an initial angle of 10 degrees and it bounces off the wall elastically when it reaches an angle of -5 degrees. What is the period of this pendulum? Homework Equations T=2π√(l/g) The...

As we know from gyroscopes, the axis of a spinning object remains in the same orientation. For example, for a spinning object traveling in a straight line, the line of travel we could call a plane and the spin axis in the direction of travel could be perpendicular to the plane and the spin axis...

Homework Statement Is momentum conserved if an object is rolling down an inclined plane? This is just a question that I was thinking over in class the other day, because the most of the coursework done was involved with collisions between two objects. Wouldn't this also be considered the...

Homework Statement A cylinder, with a rope wrapped around it, is placed on top of an inclined plane.If the speed of the cylinder in the bottom of the plane, when the angle of the plane is 30 degrees, is 1m/s, find what speed will the cylinder have when it is placed on a plane with an angle of...

Homework Statement He gives the bike a little throttle providing an applied force of 1.20 kN to propel him up the 25 degree incline. THe combined weight of Chad and the dirt bike is 1.85 kN. If the force of friction is 250 N, determine the acceleration? [b]2. Homework Equations [/b I...

The angle of the slope is 4.8 with the horizontal and the weight of the lorry is 2.4 x 105. A resistive force of 1.2 x 104 down the slope acts on the lorry as it travels up the slope at a constant speed of 15 m/s (a) Show that the component of the weight of the lorry down the slope is 2.0 x...

A block is held stationary on a frictionless inclined plane by means of a string. The angle of inclination of the plane is 25 degrees, the block has mass 2.6 kg. Calculate the force on the string, you may assume that g = 9.8 m/s2 . Sorry for the poor quality of the attachment but I think you...

Homework Statement Im completely stuck! I'm trying to find the acceleration of a block on an inclined plane. Knowing only angle of the the slope and the kinetic friction coefficiant. theta = 30 mu = 0.8 find acceleration Homework Equations F = ma Ff = mu N = mu W cos theta...

Homework Statement Why there won't be any friction?

Hi guys, I need to model a ball rolling on an incline plane, and i would like to be able to calculate acceleration due to gravity for a given angle. Currently i have: a = f / m f = m*g*sin(angle) a = g*sin(angle) I am aware this does not take rotational motion into account, which is what...

Homework Statement Imagine a block with mass m being pulled up a frictionless incline with upward angle theta by a rope with tension force T. The mass is pulled until another point of rest at a point distance d away from the original point (with d measured on the incline) and h measured on the...

Homework Statement Three blocks are connected by two different strings over two pulleys. Assume no friction between the pulleys and the rope segments. Green mass = 13 kg Red mass = 18 kg Blue mass = 23 kg The coefficient of friction between the masses and the surface is 0.20. Find the...

Homework Statement A block of mass 1.60 kg is pulled up a rough 30 degree incline at constant speed by a string parallel to the surface. The friction force on the block is 7.00 N. The incline is 4.00 m long and 2.00 m high. (1) How much gravitational potential energy did the block gain...

Homework Statement I truthfully don't know what I'm doing incorrectly with this one, it seems VERY straightforward. A block is released from rest at the top of an inclined plane and moves 3.2 m within 5.1 seconds. The inclined plane makes a 36 degree angle with the horizontal. What is...

Homework Statement A 2.10 multiplied by 103 kg car starts from rest at the top of a 4.7 m long driveway that is sloped at 20° with the horizontal. If an average friction force of 4.0 multiplied by 103 N impedes the motion, find the speed of the car at the bottom of the driveway. Homework...

Howdy, I am currently a Texas sophomore at community college. Attached in .DOC format is a list of the coursework I have completed by the end of this semester. I am planning to transfer to UT-Austin for the Spring 2012 semester with a double major in Mathematics and Computer Science. I...

Hey Everyone, here's a question i have issue with :( A particle of mass 0.5 kg is pushed up a line af a greatest slope of a rough plane by a horizontal force of magnitude ℙ N. The plane is inclined at an angle 'α' (that is alpha) where tan α = 0.75 and the coefficient of friction between 'ℙ'...

Homework Statement A block weighing 87.5 N rests on a plane inclined at 25.0o to the horizontal. A force is applied to the object at 50.0o to the horizontal, pushing it upward on the plane. The coefficients of static and kinetic friction between the block and the plane are, respectively...

When a ball rolls down an inclined plane , it gains speed because of gravity .When rolling up an inclined plane, it loses speed because of gravity .Why doesn't gravity play a role when it rolls on a horizontal surface ?

Well, it's my second post about rigid body. I originally posted this on introductory physics, but as nobody answered this, or the previous topic, I've decided to post this here. Homework Statement I have this other exercise rigid in the plane, with which I am having problems. The rod of...