Doubt by ADITI SINGH

A ball falls from a height of 5m &strikes the roof of a lift. If at the time of collision lift is moving in an upward direction with a velocity of 1m/sthen the velocity with which the ball rebounds after collision will be :

(a)11m/s downwards

(b)12 m/s   "

(c)12m/s upwards

(d) 13 m/s   "

Answers

Answer by Shraddha

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