Answer: a. Zero
The coefficient of restitution for inelastic bodies is zero.
The coefficient of restitution is the ratio of an object's final velocity to its initial velocity after a collision. The restitution coefficient, denoted by 'e' is a unitless quantity with values ranging from 0 to 1. We can learn about the collision's elasticity from the coefficient of restitution. A perfectly elastic collision is one in which there is no net loss of kinetic energy. This kind of collision has an e = 1, maximum coefficient of restitution. A collision is referred to as perfectly inelastic if the maximum amount of kinetic energy is lost. They have a restitution coefficient of e = 0. Most real-life collisions are in between. Hence the coefficient of restitution for inelastic bodies is zero.
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