Q 11-05-069JEE MainJEE Main 2024 (5 Apr, Shift 1)Easy
A body of mass $50\ \text{kg}$ is lifted to a height of $20\ \text{m}$ from the ground in two different ways: Case 1, pulled straight up; Case 2, moved along a ramp inclined at $30^\circ$ to the horizontal. The ratio of the work done against gravity in the two respective cases will be
Answer: (D) $1:1$
Work done against gravity depends only on the change in height: $W = mgh$ in both cases. The ratio is $1:1$.
Solution by Sreeraj P, M.Sc Physics