Practice mode Fluid Dynamics

A falling ball of mass 0.050 kg has reached its terminal velocity in air. Ignoring upthrust, what is the drag force acting on it (g = 9.8 m/s²)?

Correct answer B. 0.49 N

Explanation

At terminal velocity there is no acceleration, so drag balances weight: F = mg = 0.050 × 9.8 = 0.49 N. The drag is not zero; only the net force is zero.

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A falling ball of mass 0.050 kg has reached its terminal velocity in air. Ignoring upthrust, what is the drag force acting on it (g = 9.8 m/s²)?

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A falling ball of mass 0.050 kg has reached its terminal velocity in air. Ignoring upthrust, what is the drag force acting on it (g = 9.8 m/s²)?

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