Inclined Definition and 1000 Threads

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...

Homework Statement I have this other exercise rigid in the plane, with which I am having problems. The rod of mass m and length l, is released based on the vertical position of rest with the small roller end A resting on the slope. Determine the initial acceleration A. (neglect friction and...

1. Homework Statement [/b] A block of weight mg sits on an inclined plane as shown. A force of magnitude F is applied to pull the block up the incline at constant speed. The coefficient of kinetic friction between the plane and the block is Mu. What is the total work done on the block by the...

Homework Statement A frictionless pulley connects 2 masses, one of which is on a frictionless inclined plane at angle θ, as shown in the diagram. The pulley system is set up so it has a mechanical advantage of 2 (so that if m1 moves 1 meter, m2 will move only 0.5 meters). Find equations...

Homework Statement A block with mass 10.7 kg is placed on an inclined plane with slope angle 24^\circ and is connected to a second hanging block that has mass 15 kg by a cord passing over a small, frictionless pulley. The coefficient of static friction is 0.47 and the coefficient of kinetic...

Homework Statement A student is skateboarding down a ramp that is 6.2 m long and inclined at 13° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 2.1 m/s. Neglect friction and find the speed at the bottom of the ramp. Homework Equations F =...

Homework Statement On sheet Homework Equations On sheet The Attempt at a Solution On sheet

Homework Statement A 42 kg block of ice slides down a plane with an angle of 30 degrees. Assuming friction is negligible, what is the acceleration of the block down the incline Homework Equations F=ma The Attempt at a Solution I have drawn the right free body diagram. I just...

1. Two objects are connected via a pulley and some string. The 12 kg cart is on a frictionless 42 deg. incline while the 15kg block is on a horizontal surface having a coefficient of friction equal to 0.23. Determine the acceleration of the system of masses. 2. Fnet=ma 3. I first...

This is my first time posting here. My son is in junior high and asked his science teacher this question but he said the teacher seemed uncertain his response was correct. If a ball is on an inclined plane and rolls down it, does a greater pull of gravity cause the ball to roll faster, or...

Homework Statement What is the magnitude of the acceleration of the system, and what is the tension on the string. The setup is there is 2 masses m1 and m2 which are connected by a string. One is on top of a flat horizontal plane, while the other is on an inclined plane with angle 40...

Homework Statement Block A starts from rest and slides 8m down a frictionless 30 degree angled inclined plane. It then crosses a 4m horizontal surface where the coefficient of kinetic friction is 0.2. What is the velocity of Block A after it has finished crossing the horizontal surface...

I've been thinking about this for a model I'm devising. Assuming that you have an object of mass m, height h, coefficient of friction u, how large can you make the angle between the ground and the inclined plane. Otherwise, at what angle does the torque from the center of mass of the object...

URGENT physics find angle of inclined plane! help!? Homework Statement A block slides down an inclined plane at a constant velocity of 0.14m/s. The coefficient of kinetic friction is 0.45. What is the angle of inclination? Homework Equations Fnetx = Fk -mgsintheta Fnety = FN...

Homework Statement I'm having a lot of trouble figuring this one out: I attached a figure which shows what's going on, for clarification. Homework Equations The relation between absolute and relative velocities is as follows: U = u - OMEGA*y V = v + OMEGA*x where U and V are...

Homework Statement Two masses (mA = 2.5kg) and (mB = 4.0kg) are on inclines and are connected together by a string as shown in the figure . The coefficient of kinetic friction between each mass and its incline is = 0.30. Picture: http://img209.imageshack.us/img209/1416/incline1.jpg Q:If...

Homework Statement A man is pushing a box on top of a plane that is inclined 20 degrees above the horizontal, with a distance of 10 m. The weight of the box is 20 kg and the coefficient of kinetic friction is 0.30. The velocity is constant. How much force is exerted by the man? Find the work...

Homework Statement A box sits on an inclined plane. Given its mass and the angle of the incline, what is the magnitude of the normal force? Homework Equations I don't know- my understanding is N=mgcos(theta), but my physics textbook says otherwise... The Attempt at a Solution My attempt at...

A train moving up an incline at 4 degrees has it's last train compartment detached. The train was moving at a speed of 5 m/s when the compartment breaks free. How far did the train get before the speed momentarily reaches zero? No other information is given, but using all that was provided, I...

Homework Statement [PLAIN]http://img375.imageshack.us/img375/7161/physics.png I have to find the acceleration of A to B. Homework Equations My problem is that I'm not sure to add normal force with the force of gravity x component. Fnetx=Fgx m*Ax=m*g*sin(theta) Ax=g*sin(theta) The...

Homework Statement The weight of a book sliding down a frictionless inclined plane can be broken into two vector components: one acting parallel to the plane, and the other acting perpendicular to the plane. (a) At what angle is the components equal? (b) At what angle is the component...

Homework Statement Use the polygon of forces to demonstrate that the crate is in equilibrium on the slope Homework Equations No friction 1962 N crate sitting on a inclined plane 25 degree angle. The Attempt at a Solution I have drawn four forces mg = 1962 N ( 200 kg * 9.81)...

I have looked around several internet Physics sites and information sources, and even asked questions here and in other places, and can't seem to find answers to my questions about a thought experiment I came up with: Think about three similar cases: A ball, a solid cylinder, and a hollow...

Homework Statement There is inclined, smooth plane whish is sloped with angle 30 degrees. Some objects moves on it. The attraction power is 17 Newtons. Find the force which gives acceleration for the body. Homework Equations F = m×a; F_attraction = m×g; L = 30⁰; F_friction = u×N...

Homework Statement Consider a small box mass m initially at the bottom of an inclined plane mass M, length L with angle of inclination of \theta. The surface between the plane and the block and the plane and the horizontal are both frictionless. A force F is applied horizontally to the small...

Homework Statement A ball is rolling off an inclined plane. After 1 second the ball has traveled 10cm. How far will it travel in 3 seconds?Homework Equations v = l/t v = v0t + at x = x0 + v0t + at2/2 The Attempt at a Solution v = l/t1 v = v0t + at (there's no starting velocity, so) l/t1 =...

Homework Statement [PLAIN]http://img192.imageshack.us/img192/8160/3233q.jpg Need to show the gravitational acceleration: g = g_{0}sin(\theta)\hat{x}-g_{0}cos(\theta)\hat{y} where g_{0}=9.81ms^{-2}. (note that the g, x and y, should all have underbar notations). Homework...

What force does work on a ball as it is rotating down an inclined plane? Explain why the other forces the ball experiences do not do work. I think the ball experiences gravitational, normal, and frictional forces. Is the force that actually does work on the ball just gravity? I'm having a...

Homework Statement A 900kg car is moving up a 15degree inclined slope at 40ms-1. The driver slams on the brakes, skidding to a halt 40m along the road. Calculate the total work done by the car. Homework Equations This is what I am not sure of. As I am not told whether or not the...

1. An 80.0 kg box is pushed up a frictionless incline. Hypotenuse = 10.0 m. Opposite = 7.0 m. How much work is done on the box moving it to the top?

Homework Statement A block with mass 5 kg slides down and inclined plane with height 1.5 m and coefficient of kinetic friction .35. The final speed of the block is 4.2 m/s. Find the angle of the inclined plane.Homework Equations {W^{{\rm{net}}}} = {W^{{\rm{grav}}}} - {W^{{\rm{fric}}}} = {K_2}...

Hello all... Help... :confused: my teacher gave us this question and... no matter how I approach this question, I just can't solve it... The question asks... an ice block melts and slides down a plane of rough surface.. The mass of the ice block starts at 3 kg, and its mass...

Homework Statement A luggage handler pulls a suitcase of mass 17.1 kg up a ramp inclined at an angle 24.0 above the horizontal by a force of magnitude 146 N that acts parallel to the ramp. The coefficient of kinetic friction between the ramp and the incline is 0.257. The suitcase travels a...

Homework Statement A block of mass m1 is placed on a wedge of mass m2. If the wedge is held at rest, it is observed that the block will automatically slide down the incline from rest. The coefficients of kinetic and static frictions between the block and the wedge are the same as those between...

Homework Statement A 20.0kg block is placed onto a 30.0°ramp with a coefficient of static friction of0.850. Will the block slide down the ramp? a) - if the block slides down the ramp, what is the minimum applied force needed to keep the block stationary? - if...

Homework Statement http://img708.imageshack.us/img708/4375/81747300.jpg http://img837.imageshack.us/img837/5850/42434333.jpg [PLAIN][PLAIN]http://img696.imageshack.us/img696/3518/50793668.jpg Homework Equations...

Homework Statement A loaded penguin sled weighing 80N rests on an inclined plane 20 degrees to the horizontal. Between the sled and the plane, the coefficient of static friction is .25, and the coefficient of kinetic friction is .15. Homework Equations (a) What is the least...

I know this has been asked before, but it was never really clearly explained.. The problem is as follows: Homework Statement What is the acceleration of the system shown in the diagram if the kinetic coefficient of friction is 0.15? [diagram attached.. if not visible, it is an incline plane...

Homework Statement The data in my lab suggests that the mass of the block, M, does not have an effect on the inclination of the plane needed to have the block slide down with uniform velcoity. But its asking why this is so? And I do not know why! Someone please help me ASAP. Also, it...

1. You are pushing a box of mass 18kg with a force of 239 N at 34.7 degrees below the horizontal. The box is on an inclined plane at angle 15 degrees above the horizontal. What is the acceleration of the box up the ramp? 2. F=ma Fpush-Fgx = ma The Attempt at a Solution Fgx =...

Homework Statement A brick is projected up an inclined plane with an initial speed v0. If the inclination of the plane is 30 degrees and the coefficient of sliding friction μ = 0.1, find the total time for the block to return to its original position.Homework Equations The Attempt at a...

Good afternoon, a mass m slides on a frictionless surface of an inclined plane of angle x. The mass of this plane is M. The plane can slide on the horizontal surface. I look for equations of motion for the mass m and the inclined plane. I started by finding that, if the inclined plane...

This isn't exactly a specific question, but it is part of my homework (project). Anyways, suppose I have an inclined plane at 60 degrees. I can measure the mass of a freight car on top of the plane to calculate the force and final velocity of that car... I did this before in physics, and it...

Homework Statement A box is placed on an inclined plane of angle \theta. There is no fiction between the box and the plane nor between the inclined plane and the floor. The mass of the box is m_1 and the mass of the inclined plane is m_2 . Find the acceleration of the box and that of...

Homework Statement An object of mass 13 kg is placed on incline with friction. Incline is originally horizontal and then raised slowly and at 22 degrees, mass begins to slide down incline. It is found that coefficient of kinetic friction is .83 times coefficient of static friction. If incline...

Homework Statement here i am going to sort out fresh and hard boil egg. i suggested that used incline plane. It is expected that the boil egg will pass through the second positive gradient incline while the fresh egg are not. Homework Equations so my question is, what the equation involve...

Homework Statement "A 60kg boy rides down an icy hill of 19º slope while standing on a 2.6kg flat-bottomed bathroom scale. Assume there is no frictional force between the bottom of the scale and the hill. The static friction force the scale exerts on the boy is ____. Homework Equations...

Homework Statement A block of mass "m" is placed on an incline of angle \theta and mass "M", which is placed on a horizontal surface (the ground) and release from rest. Both the block and incline start accelerate. All surfaces are frictionless. Find the acceleration of the block with respect...

Homework Statement A block of mass m accelerates with acceleration g up a frictionless plane that is inclined at an angle α above the horizontal. The force Fo that pushes the block is at an angle β above the horizontal. Find the force Fo. 1. mg(1 + sin β)/cos(α + β) 2. mg(1 + sin...