Question : An elevator car, whose floor to ceiling distance is equal to 2.7m starts ascending with constant acceleration of 1.2 ms-2. 2 seconds after the start, a bolt begins falling from the ceiling of the car. The free fall time of the bolt is
(a) √0.54 s
(b) √6 s
(c) 0.7 s
(d) 1 s
Answer : The right option is (c)
Solution :
