Read the following statements made by two students about power and identify the…
PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
Read the following statements made by two students about power and identify the misconceptions involved.
(a) (i) Student A says, "If two applied forces are equal in magnitude, they always produce the same power."
(b) (ii) Student B says, "Any object moving with a high speed must always have high power."
(c) (a) For each statement, point out the conceptual error and give the correct scientific explanation.
(d) (b) A constant horizontal force is applied to two identical boxes. One box moves on a smooth floor, the other on a rough floor and comes to rest after some distance. Discuss whether the average power developed by the applied force during the first second of motion is the same for both boxes. Give reasons for your answer.