A ball which is at rest is dropped from a height ℎ meter. As it bounces off the floor its speed is 80% of what it was just before touching the ground. The ball then rise to nearly a height

April 14, 2022

by Ezee_Notes

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Physics Problems

Question : A ball which is at rest is dropped from a height ℎ meter. As it bounces off the floor its speed is 80% of what it was just before touching the ground. The ball then rise to nearly a height

(A) 0.94 ℎ

(B) 0.80 ℎ

(D) 0.64 ℎ

Answer : option (D)

Solution :

A ball which is at rest is dropped from a height ℎ meter. As it bounces off the floor its speed is 80% of what it was just before touching the ground. The ball then rise to nearly a height