Question
Question: A ball is dropped from a height h on a floor of coefficient of restitution e. The total distance cov...
A ball is dropped from a height h on a floor of coefficient of restitution e. The total distance covered by the ball just before second hit is –
A
h(1 – 2e2)
B
h(1 + 2e2)
C
h(1 + e2)
D
he2
Answer
h(1 + 2e2)
Explanation
Solution
Q Ball is dropped from height h
\ Height attained by the ball after collision = e2h
̃ Total distance = h + e2h + e2h = h(1 + 2e2)