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JEE Main 2002 (AIEEE) · Apparent Weight & Lift

Apparent Weight & Lift question from JEE Main 2002 (AIEEE)

Q22JEE Main 2002 · AIEEEEasy

Apparent Weight & Lift

A lift is moving down with acceleration $a.$ A man in the lift drops a ball inside the lift. The acceleration of the ball as observed by the man in the lift and a man standing stationary on the ground are respectively

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Answer: (c)

Ground observer: once released, only gravity acts, so ball's acceleration is $g$ .
Lift observer: relative acceleration $= g - a$ (both accelerate downward).
So the answer is (c) $g - a$ , $g$ .

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