Question

Socrates struggled and strained as he lifted an 82.0-kilogram mass vertically a distance of 3.00 meters from in 5.0 minutes with constant velocity.

(a). How much work did you do?

(b). What was the average power consumption in watts?

Answer 1

$(a) \ W=mgh=82\cdot9.8\cdot3=2410.8\ (J)$

$(b)\ P=W/t=2410.8/(5\cdot60)\approx8\ (W)$