MCQ
A ball is dropped from a height $h$. If the coefficient of restitution be $e$, then to what height will it rise after jumping twice from the ground
- A$eh/2$
- B$2eh$
- C$eh$
- ✓${e^4}h$
✓
Answer
Correct option: D.
${e^4}h$
d
(d)${h_n} = h{e^{2n}}$, if $n = 2 $ then ${h_n} = h{e^4}$
(d)${h_n} = h{e^{2n}}$, if $n = 2 $ then ${h_n} = h{e^4}$
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