A body of mass 2 kg moving with uniform velocity of `40 ms^(-1)` collides with another body at rest . If two bodies move together with a velocity of ` 20 ms^(-1)` . Find the mass of the other body .

(a) A body of mass 2 kg moving with uniform velocity of 40 ms^(-1) collides with another body at rest if two bodies move together with a velocity o 20 ms^(-1) . Find the mass of the other body. (b) Distinguish between linear, areal (or) superficial expansion.

When a body of mass m_(1) moving with uniform velocity 40 ms^(-1) collides with another body of mass m_(2) at rest, then the two together begin to move with uniform velocity of 30 ms^(-1) . The ratio of the masses (i.e., m_(1)//m_(2) ) of the two bodies will be

A body of mass 4 kg moving with velocity 12 m//s collides with another body of mass 6 kg at rest. If two bodies stick together after collision , then the loss of kinetic energy of system is

A body of mass 4 kg moving with velocity 12 m//s collides with another body of mass 6 kg at rest. If two bodies stick together after collision , then the loss of kinetic energy of system is

A body of mass 4 kg moving with velocity 12 m//s collides with another body of mass 6 kg at rest. If two bodies stick together after collision , then the loss of kinetic energy of system is

A spere of mass 20 kg moving with a velocity 40 ms^(-1) collides with another sphere of mass 15 kg which is at rest . After collision they move with the same velocity . Find the velocity .