Four statements are given below regarding mechanical power
PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
Four statements are given below regarding mechanical power. Read them carefully.
(a) Average power depends only on the total work done and the total time taken, not on how the work rate varies with time.
(b) Instantaneous power can never exceed average power for the same process.
(c) If equal work is done in shorter time, the average power is greater.
(d) For an object moving under a constant force along its direction, the instantaneous power equals the product of that force and the object’s instantaneous speed.
For each statement:
(i) State whether it is true or false.
(ii) Provide a brief justification for your answer in one or two sentences.