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An elevator car whose floor to ceiling distance is equal to 2.7m starts

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

Options

(a) √6 s
(b) 0.7 s
(c) 1 s
(d) √0.54 s

Correct Answer:

1 s

Explanation:

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