Question

17 A rain drop (m = 3.35 x 10,5 kg) falls vertically at a constant speed under the influence
of the forces of gravity and friction. In falling through 100 m, how much work is done by
(a) gravity and (b) friction
[Ans: (a) 0.0328 J (b) - 0.0328 J]​

Answer 1

Answer:

Step-by-step explanation:

(a) The work done on the raindrop by the gravitational force is given by  

W=mgh=(3.35×10  −5 kg)(9.80m/s^2 )(100m)=3.28×10^  −2 J