A boy lifts a suitcase vertically upward through and then carries it horizontally for…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A boy lifts a suitcase vertically upward through 2m and then carries it horizontally for 3m at the same height. What is the overall sign of the work done by the gravitational force on the suitcase for the entire journey?
(a) Positive
(b) Zero
(c) Negative
(d) Cannot be determined with the given information