A coin is released inside a lift at a height of 2 m from the floor of the lift. The height of the lift is 10 m. The lift is moving with an acceleration of 11 m/s 2 downwards. The time after which the coin will strike with the lift is :
A
4 s
B
2 s
C
s
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Relative to lift initial velocity and acceleration of coin are 0 m/s and 1 m/s 2 upwards
∴ 8 = 
t 2 or t = 4 second
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