A Convex mirror of radius of curvature R is fixed on a standat rest with total mass m which is facing a block of equal mass m as shown in figure and is kept on a frictionless horizontal surfece. The separation between the block and mirror is 2R and block is moving at a speed v toward the mirror. Consider elastic collision between block and stand, find the speed of image after time `3R//v`.

Two concave mirrorsof equal radi of curvature R are fixed on a stand facing opposite directions. The whole system has a mass m nd is kept onn a frictionlesss horiztonal table figure Two blocks A and B, each of mass m, are placed on the two side of the stnd. At t=0, teh separation between A and the mirrors is 2R and also the separation between B and the mirrors is 2R. The block B moves towards the mirror at a speed v. All collisions which take place are erastic. Taking the original position of the mirrors stand system to be x=0 and X -axis along AB, find the position of the image of A and B at t= a. R/(upsilon) , b. (3R)/(upsilon) c. (5R)/(upsilon)

A small block of mass M moves with velocity 5 m/s towards an another block of same mass M placed at a distance of 2 m on a rough horizontal surface . Coefficient of friction between the blocks and ground is 0.25 . Collision between the two blocks is elastic , the separation between the blocks , when both of them come to rest , is ( g = 10 m//s^(2) )

A block of mass m is placed at rest on an inclination theta to the horizontal.If the coefficient of friction between the block and the plane is mu , then the total force the inclined plane exerts on the block is

A bullet of mass 'm' moving with velocity 'u' passes through a wooden block of mass M = nm as shown in figure. The block is resting on a smooth horizontal floor. After passing through the block, velocity relative to the block is .

Block A of mass M in the system shown in the figure slides down the incline at a constant speed. The coefficient of friction between block A and the surface is 1 3 3 . The mass of block B is-

An object of mass m is moving with velocity ữ towards a plane mirror kept on a stand as shown in the figure. The mass of the mirror and stand system is m. A head- on elastic collision takes place between the object and the mirror stand the velocity of image before and after the collision is

A block of mass m is placed on the block of mass M as shown in figure. The horizontal force vecF acts on M during time interval t. If the horizontal surface is smooth, assuming no relative sliding between the blocks, find the a. work done by friction on the blocks b. work done by vecF on the lower block

A single horizontal force F is applied to a block of mass M_(1) which is in contact with another block of mass M_(2) . If the surfaces are frictionless, the force between the blocks is