Which one of the following conditions is essential for the derivation of for a moving…
PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
Which one of the following conditions is essential for the derivation of P=Fv for a moving particle?
(a) The force and velocity vectors must be collinear.
(b) The force must remain constant in magnitude.
(c) The displacement considered must be infinitesimal for calculus to apply.
(d) The force must act perpendicular to velocity at every instant.