Question

An elastic boll hits a horizontal floor vertically with a speed of u and in allowed to strike the floor another two times after which it rebounds from the flower with velocity 27u/64 Neglecting the air resistance, the coefficient of elasticity between the ball and the floor is
1. 1/4
2. 1/2
3. 3/4
4. 1​

Answer 1

Answer:

3/4

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Explanation:

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