A student slowly lowers a book from a shelf to the floor

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A student slowly lowers a 2 kg2\,\text{kg} book from a shelf to the floor. What is the sign of the work done by the student’s applied force on the book? (a) Positive (b) Zero (c) Negative (d) Cannot be determined

Related theory

Browse the problem library