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A ball of mass 50 g is dropped from a he...

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^(2)`]

A

1/20th of a second

B

1/40th of a second

C

1/8oth of a second

D

1/20th of a second

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The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-LAWS OF MOTION-ASSIGNMENT ( SECTION -A)
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