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a balloon of mass m is found to accelerate up at the rate of g/6. the quantity of water that should be put inside the balloon so that it may accelerate downwards at the rate of g/6 is:

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Aditya Bhutra ·2011-08-11 00:32:36

mass of water= 2m/5

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Abhishek Das ·2011-08-11 03:41:10

yes.......I agree wid Aditya's result mass of water is 2m/5....

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Ashish Kothari ·2011-08-12 01:34:10

You need to calculate the amount of buoyant force acting on the balloon. Assume it to be U.

so,
mg/6=U-mg

This gives U=7mg/6

And then, assume mass of water to be added is M.

(M+m)g/6=(M+m)g - U

M=2m/5

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chaudhuri_j ·2011-08-12 10:29:15

.........

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