A body falling from a height of \( 10 \mathrm{~m} \) rebounds from hard floor. If it loses \( 20...

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A body falling from a height of \( 10 \mathrm{~m} \) rebounds from hard floor. If it loses \( 20 \% \) energy in the impact, then coefficient of restitution is
[AIIMS 2000]
(a) \( 0.89 \)
(b) \( 0.56 \)
(c) \( 0.23 \)
(d) \( 0.18 \)
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