Multiple Choice
A 30.0-kg object has a drag force with a magnitude proportional to the square of its speed. The object falls with an acceleration 4.00 m/s2 downward when it is falling downward at 70.0 m/s. What is its terminal velocity?
A) 110 m/s
B) 157 m/s
C) 91.0 m/s
D) 172 m/s
E) 108 m/s
Correct Answer:
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