A body is acted upon by a number of external forces. Can it remain at rest.

A shell of mass 5M, acted upon by no external force and initially at rest, bursts into three fragments of mass M, 2M and 2M respectively. The first two fragments move in opposite directions with velocity of magnitudes 2V and V respectively. The third fragment will

A body in motion is acted upon by a force. Will the body stop at the moment of withdrawal of the force?

A body of mass 3 kg acted upon by a constant force is displaced by 's' meter, given by the relation s=(1)/(3)t^(2) , where t is in second. Work done by the force in 2 seconds is

A body of mass 6 kg is acted upon by a force which causes a displacement in it given by x = t^2/4 meter, where t is the time in second. The work done by the force in 2 seconds is

Fill in the blanks : _______increase while the area of surface on which the force acts upon decrease even if the force remain the same.