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A balloon has volume of 1000 m^(3). It i...

A balloon has volume of `1000 m^(3)`. It is filled with hydrogen `(rho=0.09 gL^(-1))`. If the density of air is `1.29 gL^(-1)`, it can lift a total weighht of

A

600 kg

B

1200 kg

C

300 kg

D

1800 kg

Text Solution

Verified by Experts

The correct Answer is:
B
`1 gL^(-1)=1 kgm^(-3)`
Upthrust = total downward force
`therefore" "1000xx1.29xxg=(1000xx0.09xxg+mg)`
`therefore" "m=1200kg`
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