(a) Define mechanical power and state its SI unit. (b) Explain the difference between…
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
(a) Define mechanical power and state its SI unit.
(b) Explain the difference between average power and instantaneous power. Give one everyday example for each to illustrate your explanation.
(c) A ceiling fan is marked "75 W" by the manufacturer. Interpret this marking in terms of the work done by the fan in 5min. Show your working clearly.