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JEE Main 2022 (29 Jun, Shift 2) · Conservation of Energy

Conservation of Energy question from JEE Main 2022 (29 Jun, Shift 2)

Q21JEE Main 2022 · 29 JUN · SHIFT 2Easy

Conservation of Energy

In the given figure, the block of mass m is dropped from the point 'A'. The expression for kinetic energy of block when it reaches point 'B' is

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Answer: (d)

Block is dropped from rest at A, so KE at B = PE lost.
The block falls through the distance $AB = y_0$ .
$K_B = mg y_0$
So the answer is (d) $mgy_0$ .

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