Multiple Choice
A 2.5-kg object falls vertically downward in a viscous medium at a constant speed of 2.5 m/s.How much work is done by the force the viscous medium exerts on the object as it falls 80 cm?
A) +2.0 J
B) +20 J
C) -2.0 J
D) -20 J
E) +40 J
Correct Answer:
Verified
Correct Answer:
Verified
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