A porter lifts a suitcase to his shoulder and then walks horizontally with it at…
PHYSICS · Single correct · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power
Problem
A porter lifts a suitcase to his shoulder and then walks horizontally with it at constant speed. What is the work done by the porter on the suitcase while he is walking on the horizontal surface?
(a) mgs
(b) 21mv2
(c) 0
(d) Cannot be determined without knowing the speed