Physics jamb 2012

A balloon whose volume is 300m3 is filled with hydrogen. If the density of air is 1.3 kgm-3, find the upthrust on the balloon. [g = 10ms-2]

a

3000N

b

3800N

c

3900N

d

4200N

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Correct Option
c

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Odemosad
1 year ago

Upthrust = vol. * density * g
300 * 1.3 * 10 = 3900N

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