Question

A ball of mass 50 g is dropped from a height of
20 m. A boy on the ground hits the ball vertically
upwards with a bat with an average force of 200 N,
so that it attains a vertical height of 45 m. The
time for which the ball remains in contact with the
bat is [Take g = 10 m/s?]
(1) 1/20th of a second (2) 1/40th of a second
(3) 1/80th of a second (4) 1/120th of a second​

Answer 1

Answer:

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