Question

A rubber ball dropped from a height of 20m
(g=10m/s") falls on the roof of an elevator
going up at 2 m/s. If the collision of the ball
with the elevator is elastic, the ball rebounds
with a velocity of
1) 20m/s 2) 22m/s 3) 24m/s 4) 26m/s
please upload the method also with it​

Answer 1

Answer:

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Explanation:

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