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 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.

Two particles each of mass M are connected by a massless rod. The rod is lying on the smooth horizontal surface. If one of the particle is given an impulse MV as shown in the figure then angular velocity of the system would be:

A spring of spring constant 'K' is fixed at one end has a small block of mass m and charge q is attached at the other end. The block rests over a smooth horizontal surface. A uniform and constant magnetic field B exists normal to the plane of paper as shown in figure. An electric field vec(E) = E_(0) hat (i)(E_(0) is a positive constant) is switched on at t =0 sec. The block moves on horizontal surface without ever lifting off the surface. Then the normal reaction acting on the block is :

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 cycle tyre of mass M and radius R is in pure rolling over a horizontal surface. If the velocity of the centre of mass of the tyre is v, then the velocity of point P on the tyre, shown in figure is

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

A thin ring of mass m and radius R is in pure rolling over a horizontal surface. If v_0 is the velocity of the centre of mass of the ring, then the angular momentum of the ring about the point of contact is

A rod AB of length 2L and mass m is lying on a horizontal frictionless surface. A particle of same mass m travelling along the surface hits the rod at distance (L)/(2) from COM with a velocity v_(0) in a direction perpendicular to rod and sticks to it. Angular velocity of rod just after collision is

A rod AB of length 2L and mass m is lying on a horizontal frictionless surface. A particle of same mass m travelling along the surface hits the rod at distance (L)/(2) from COM with a velocity v_(0) in a direction perpendicular to rod and sticks to it. Angular velocity of rod just after collision is