Engineering Dynamics · Work-energy and impulse-momentum
A ball is dropped from rest onto a rigid horizontal floor from a height of 2.4 m and…
Problem
A ball is dropped from rest onto a rigid horizontal floor from a height of 2.4 m and rebounds to a height of 1.35 m. Determine the coefficient of restitution and the percentage of kinetic energy lost during the impact.
Hint
A rigid floor has zero velocity, so e reduces to the ratio of rebound speed to impact speed.
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