A student carries a 5 kg school bag while walking straight along a horizontal…
PHYSICS · Single correct · CBSE · Physics · Work and Energy · Work and Energy
Problem
A student carries a 5 kg school bag while walking straight along a horizontal corridor at constant speed. What is the sign of the work done by the gravitational force on the bag during this motion?
(a) Negative
(b) Zero
(c) Positive
(d) Cannot be determined because the speed is not given