Asked by vedvd
A ball is falling at terminal velocity. Terminal velocity occurs when the ball is in equilibrium and the forces are balanced.
Which free body diagram shows the ball falling at terminal velocity?
A free body diagram with one force pointing downward labeled F Subscript g Baseline 20 N.
A free body diagram with 2 forces: the first pointing downward labeled F Subscript g Baseline 20 N and the second pointing upward labeled F Subscript air Baseline 20 N.
A free body diagram with 2 forces. The first pointing downward labeled F Subscript g Baseline 20 N and the second pointing upward labeled F Subscript air Baseline 5 N.
A free body diagram with 2 forces: the first pointing downward labeled F Subscript g Baseline 20 N and the second pointing upward labeled F Subscript air Baseline 30 N.
All Answers 1
Answered by
GPT-5 mini
AI
The second diagram: the one with two forces, Fg = 20 N downward and Fair = 20 N upward.
Reason: at terminal velocity the drag equals the weight so the forces balance (net force = 0), giving no acceleration and a constant downward speed.
Reason: at terminal velocity the drag equals the weight so the forces balance (net force = 0), giving no acceleration and a constant downward speed.
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