A small block of mass m=1kg is pulled slowly by applying a tangential force along a quarter circular arc of radius R = 0.1 m from (0,0) to (R, R). The coefficient of friction varies in x-y plane asu (x 2. The modulus of work done by the frictional force on the block is y J. then y= = (R.R)

A block of mass m=1 kg has a speed v = 4 m//s at theta = 60^(@) on a circular track of radius R = 2 m as shown in figure. Size of the block is negligible. Coefficient of friction between block and the track is mu = 0.5 . The force of friction between the two is

A block of mass 0.1 kg is held against a wall by applying a horizontal force of 5 N on the block. If the coefficient of friction between the block and the wall is 0.5, then the magnitude of the frictional force acting on the block is

A block of mass 1kg is pressed against a wall by applying a horizontal force of 10N on the block. If the coefficient of friction between the block and the wall is 0.5 ,magnitude of the frictional force acting on the block is

A block of mass 0.1 is held against a wall applying a horizontal force of 5N on block. If the coefficient of friction between the block and the wall is 0.5, the magnitude of the frictional force acting on the block is:

A block of mass 6 kg is being pulled by force 24 N as shown . If coefficient of friction between the block and the surface is 0.6 , frictional force acting on the block is :

A small collar of mass m = 100 g slides over the surface of a horizontal circular rod of radius R = 0.3 m. The coefficient of friction between the rod and the collar is mu = 0.8 . Find the angle made with vertical by the force applied by the rod on the collar when speed of the collar is V = 2 m/s.

A block of mass m is slowly pulled along a curved surface from position 1 and 2. If the coefficient of kinetic friction between the block and surface is mu , find the work done by the applied force.

A block of mass 1 kg is pulled slowly along the curve path ACB by a tangential force as shown in figure. The magnitude of work done by the frictional force when the block moves from A to B is

A block of mass 0.4kg is pulled along the curve path CAN slowly by a tangential force as shown in figure. The work done by the applied force when the block moves from A to B is