PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A 0.5kg book is moved from the floor to a shelf 2m high. Path 1 is a straight vertical lift, while Path 2 is along a smooth ramp of length 4m. Which statement about the work done by gravity is correct?
(a) The magnitude of work is twice as large along the ramp
(b) The work done by gravity is zero for both paths
(c) The magnitude of work is the same for both paths
(d) The magnitude of work is half as large along the ramp