Answer the questions given below with reference to the standard derivation of the…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
Answer the questions given below with reference to the standard derivation of the work–energy theorem for a particle.
(i) State any two physical assumptions that must hold true for the usual derivation to remain valid.
(ii) Explain, with reason, why the constancy of mass is essential in the derivation.
(iii) Distinguish in one paragraph between the differential approach and the integral approach followed while proving the theorem.