Question

a hydrogen gas filled balloon having a mass of 25 kg is released up in the air. as the as cenda the gas starts leaking from it with uniform velocity 12 cm / sec and as a result thw balloon shrinks completely in 15 seconds. find the average force acting on balloon
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Answer 1

Answer:

The balloon loses 25 g or 0.025 kg gas in 5 s.So, rate of flow of gas is, dm/dt = 0.025/5 = 0.005 kg/sVelocity of the gas, v = 12 cm/s = 0.12 m/sNow, ...

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Answer 2

Answer:

चचघ चचघ छचघण दततम जममजछततततततततचचघढढमममततणणणणणणणणणणणमममममममम