A block is raised from the ground to the roof of a building first by carrying it…
PHYSICS · Subjective · CBSE · Physics · Work and Energy · Work and Energy
Problem
A block is raised from the ground to the roof of a building first by carrying it straight up a lift and then, on another occasion, by dragging it up an inclined ramp of the same vertical height. Explain why the work done by the gravitational force is identical in the two cases.