In the conventional derivation of the work–energy theorem for a single particle
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
In the conventional derivation of the work–energy theorem for a single particle, which one of the following assumptions is essential?
(a) The net force acting is conservative
(b) The mass of the particle remains constant during motion
(c) The acceleration of the particle is constant
(d) The displacement considered is infinitesimally small