Asked by kin

A hot air balloon weighing 30N to the ground by a string to prevent from floating of the ground.The volume of the balloon is 20meter cube and the density of air is 1.3kgm-3. Find the upthrust acting on the balloon. I take g=10ms^-2
Answered by kin
Yes
Answered by oobleck
Yes what?

weight of displaced air is
20m^3 * 1.3kg/m^3 * 10N/kg = 260N
Answered by Yoga Prasad Timsina
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