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a man in a balloon rising vertically wit...

a man in a balloon rising vertically with an acceleration of 4.9`m/s^2` releases a ball 2 seconds after the balloon is let go from the ground. The greatest height above the ground reached by the ball is

A

14.7m

B

19.6m

C

9.8m

D

24.5m

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The correct Answer is:
A
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