FREE BODY DIAGRAM

COLLISION OF A PARTICLE WITH RIGID BODY ( FREE TO ROTATE AND TRANSLATE)

Blocks A, B and C are placed as shown in Fig and connected by the rops of negligible mass . Both A and B weigh 25.0 N each , and the coefficient of kinetic friction between each and the surface is 0.35 blocks C descends with constant velocity . a. Draw two separate free- body diagrams showing the forces acting on A and B b. Find the tension in the rope connecting blocks A and B c. What is the weight of blocks C? d. If the rope connecting A and B were cut, what would be the acceleration of C?

A plane surface, incline at 37^(@) to the horizontal is accelerated horizontally till a block of mass m originally at rest with respect to the plane, just starts to slip up the plane. The coefficient of static friction between surfaces in contact is mu = (5)/(9) Find the acceleratiobn of the plane [Hint : Applying D' Alembert's principle bring the system to rest. Make free-body diagram adn apply second law of motion]

A uniform disc of radius R and mass M is free to rotate only about its axis. A string is wrapped over its rim and a body of mass m is tied to the free end of the string as shown in the figure. The body is released from rest. Then the acceleration of the body is

A man of mass M stands on a weighing machine in an elevator accelerating upwards with an acceleration a. Draw the free-body diagram of the man as observed by the observer A (stationary on the ground) and observer B (stationary on the elevator). Also, calculate the reading of the weighing machine.

A small elecrtrically charged sphere is suspended vertically from a thread. An oppositely charged rod is brought close to the sphere such that the sphere is the sphere is in equlibrium displaced from the vertical by an angle of 30^(@). When one of the following best represents the free body diagram for the sphere?

The figure shows two blocks of mass m_(1) and m_(2) placed one above the other. These is no friction between the lower block and ground. The lower block is being pushed by a constant horizontal force F. There is sufficient friction between the blocks so that they do not slip over each other. Draw the free body diagram of the upper block in the frame of groung and in the frame of lower block. Find the work done by various forces on the upper block in the two frames as the arrangement moves through 'S'