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A ballon has 8 gm of air. A small hole i...

A ballon has 8 gm of air. A small hole is pierced into it. The air escapes at a uniform rate of `7cm/s`. If the ballon shrinks in 5.6 second, the average force acting on the ballon is

A

`10^-4 N`

B

`10^-2` dyne

C

50 dyne

D

`10^-6 N`

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The correct Answer is:
A
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