The Coefficient of the Restitution of an Object Is Defined

Multiple Choice

The coefficient of the restitution of an object is defined as the ratio of its outgoing to incoming speed when the object collides with a rigid surface.For an object with a coefficient of 0.78,what fraction of the object's kinetic energy is lost during a single collision?

A) 39%
B) 16%
C) 47%
D) 61%