PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
Worker X lifts a 50kg crate vertically through 1.5m in 3.0s. Worker Y pushes the same crate horizontally for 10m across a floor against a constant opposing force of 100N, also in 3.0s. Neglecting all other forces, whose average power output is greater?
(a) Both have equal average power
(b) Worker Y
(c) Cannot be decided with the given information
(d) Worker X