1.A round table with four symmetrical pointed legs is lying over a horizontal surface.If mass of the table is `m`, then normal reaction of surface on each leg is equal to

A car moves along an uneven horizontal surface with a constant speed at all points. The normal reaction of the road on the car is ltbrrgt

A body moves along an uneven horizontal road surface with constant speed at all points. The normal reaction of the road on the body is

A uniform square block of side 'a' and mass 'm' is lying on a horizontal surface. A small block of mass m is placed on the top block. Find the distance by which normal reaction is shifted.

A rod of mass m and length l is lying on a horizontal table. Work done in making it stand on one end will be

A vehicle is moving with uniform speed along horizontal, concave and convex surface roads. The surface on which, the normal reaction on the vehicle is maximum is

Two block of masses M and m are connected to each other by a massless string and spring of force constant k as shown in the figure. The spring passes over a frictionless pulley connected rigidly to the egde of a stationary block A. The coefficient of friction between block M and plane horizontal surface of A is mu . The block M slides over the horizontal top surface of A and block m slides vertically downward with the same speed. The mass M is equal to

Is it necessary to have normal reaction whenever two surfaces are in contact with each other?

One fourth length of a uniform rod of length 2l and mass m is place don a horizontal table and the rod is held horizontal. The rod is released from rest. Find the normal reaction on the rod as soon as the rod is released.

A block of mass m is kept on horizontal turn table at x distance from the centre. If coefficient of friction between block and surface of turn table is mu , then maximum angular speed of the table so that block does not slip