Classical Mechanics

Free Version

Upgrade subject to access all content


Work Done by Gravity: Three Paths


A block moves from a height $h$ to the ground under the influence of gravity by following three different paths. In the first case, the block falls straight to the ground, in the second case the block slides down a curvy frictionless ramp to the ground and in the third case the block slides down a straight frictionless ramp. Ignore air resistance in all cases.

Suzanne Taylor. Created for Copyright 2016. All Rights Reserved

For which path does gravity do the most work on the block?


Path 1


Path 2


Path 3


The work is the same for all three