A student lifts a book from the floor to a shelf high

PHYSICS · Subjective · CBSE · Physics · Work and Energy · Work and Energy

Problem

A student lifts a 2 kg2\,\text{kg} book from the floor to a shelf 1.5 m1.5\,\text{m} high. Another student slides the same book up a smooth ramp that rises the same vertical height. Explain why the mechanical work done in both cases is the same.

Related theory

Browse the problem library