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JEE Main 2024 (5 Apr, Shift 1) · Work by a Constant Force

Work by a Constant Force question from JEE Main 2024 (5 Apr, Shift 1)

Q8JEE Main 2024 · 5 APR · SHIFT 1Easy

Work by a Constant Force

A body of mass $50\text{ kg}$ is lifted to a height of $20\text{ m}$ 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:

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Answer: (c)

Work against gravity depends only on the vertical rise: $W = mgh$ (gravity is conservative).
Both cases: $W = 50 \times g \times 20$ , same value.
So the answer is (c) $1 : 1$ .

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