A body of mass $50 \mathrm{~kg}$ is lifted to a height of $20 \mathrm{~m}$ from the ground in the two…
A body of mass $50 \mathrm{~kg}$ is lifted to a height of $20 \mathrm{~m}$ from the ground in the two different ways as shown in the figures. The ratio of work done against the gravity in both the respective cases, will be :
$1: 2$
$\sqrt{3}: 2$
$2: 1$
$1: 1$
Solution
Work done by gravity is independent of path. It depends only on vertical displacement so work done in both cases will be same.
