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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