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#### Question

Underline the correct alternative:

In an inelastic collision of two bodies, the quantities which do not change after the collision are the total kinetic energy/total linear momentum/total energy of the system of two bodies.

#### Solution

#### Similar questions VIEW ALL

Underline the correct alternative:

The rate of change of total momentum of a many-particle system is proportional to the external force/sum of the internal forces on the system.

Consider the decay of a free neutron at rest : n → p + e^{–}

Show that the two-body decay of this type must necessarily give an electron of fixed energy and, therefore, cannot account for the observed continuous energy distribution in the β-decay of a neutron or a nucleus

A bullet of mass 0.012 kg and horizontal speed 70 m s^{–1} strikes a block of wood of mass 0.4 kg and instantly comes to rest with respect to the block. The block is suspended from the ceiling by means of thin wires. Calculate the height to which the block rises. Also, estimate the amount of heat produced in the block.

Two identical ball bearings in contact with each other and resting on a frictionless table are hit head-on by another ball bearing of the same mass moving initially with a speed *V*. If the collision is elastic, which of the following figure is a possible result after collision?

Answer carefully, with reasons:

If the potential energy of two billiard balls depends only on the separation distance between their centres, is the collision elastic or inelastic? (Note, we are talking here of potential energy corresponding to the force during collision, not gravitational potential energy).