Question

The coefficient of restitution, e, is used to characterize a partially elastic collision. It is defined as the ratio of:

Options

• Total initial momentum to total final momentum

• Speed of approach to speed of separation

• Kinetic energy loss to initial kinetic energy

• Speed of separation to speed of approach

Answer 1

Speed of separation to speed of approach

Explanation:

The coefficient of restitution is defined as e = \[\frac{\text{speed of separation}}{\text{speed of approach}}=\frac{v_2-v_1}{u_1-u_2}\]