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JEE Main Physics question

PhysicsMotion in a PlaneJEE Main

An elevator car, whose floor to ceiling distance is equal to 2.7, starts ascending with constant acceleration 1.2 . 2 after the start, a bolt begins falling from the ceiling of the car. The free fall time of the bolt is

Answer: (C)

Solution

Relative to the elevator, the bolt decelerates at m/s from zero

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Question ID VK-152591