Question : A lift in which a man is standing, is moving upward with a speed of 10ms−1 . The man drops a coin from a height of 4.9m and if g = 9.8 ms −2 , then the coin reaches the floor of the lift after a time
(A) \sqrt{2}s
(B) 1 s
(C) \dfrac{1}{2}s
(D) \dfrac{1}{\sqrt{3}}s
Answer : option (B)
Solution :
