4. A 2.5 kg object falls vertically downward in a viscous medium at a constant speed of 2.5m/s. How much work is done by the force the viscous medium exerts on the object as it falls 80.0cm? A. -2.0 x 10 J B. -39 J C. 39 J D. 2.0 × 10 J E. O J

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4. A 2.5 kg object falls vertically downward in a viscous medium at a constant speed of 2.5m/s.
How much work is done by the force the viscous medium exerts on the object as it falls
80.0cm?
A. -2.0 x 10 J
B. -39 J
C. 39 J
D. 2.0 × 10 J
E. O J
Transcribed Image Text:4. A 2.5 kg object falls vertically downward in a viscous medium at a constant speed of 2.5m/s. How much work is done by the force the viscous medium exerts on the object as it falls 80.0cm? A. -2.0 x 10 J B. -39 J C. 39 J D. 2.0 × 10 J E. O J
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