(15%) Problem 5: A balloon filled with helium gas has an average density ofpb- 0

Question

(15%) Problem 5: A balloon filled with helium gas has an average density ofpb- 0.22 kg/m. The deusity of the air is about pa 1.23 kglm. The volume of the balloon is V0.033 m3. The balloon floats upward with acceleration a Otheexpertta.co 50% Part (a) Express the net force Foo the balloon in terms ofits weight " and the buoyancy force Ft on it, assuming upward s the positive direction. Grade Summary Deductions 0 Pobeatial100 Sabauissions Attempls remiaing (10% per attempt Igne up Foedback: S dedution per Deelback

Explanation / Answer

part a) for the net force on the ballon

Fb acts in upwards direction

W is the weight acting downwards

net force = Fb - W

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