Ignore drag to get the initial acceleration

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Reference no: EM13707736

A child releases a helium-filled party balloon. It is filled with low-quality helium so that the net specific gravity (compared to ambient air) is 0.15, including a small allowance for the the light balloon shell. Its initial acceleration opposite to gravity starting from rest is about: (Hint: Since the body is starting from rest, you can ignore drag to get the initial acceleration, but you must include buoyancy forces)

A. -17/13g
B. -1g
C. -25/13g

Reference no: EM13707736

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