A ball falls on the ground fro a height of 2.0 m and rebounds up to a height of 1.5 m. Find the coefficient of restitution.

Explanation

To find the coefficient of restitution (e) for the ball that falls from a height of 2.0 m and rebounds to a height of 1.5 m, we can follow these steps:

### Step 1: Understand the Coefficient of Restitution
The coefficient of restitution (e) is defined as the ratio of the velocity of separation after the collision to the velocity of approach before the collision. Mathematically, it is expressed as:
\[ e = \frac{v_2}{v_1} \]
where:
- \( v_2 \) is the velocity of the ball just after the collision (when it rebounds).
- \( v_1 \) is the velocity of the ball just before the collision (when it hits the ground).
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