MediumPhysics
+4 / -1
-- A lift whose floor to ceiling distance is d starts ascending with a constant acceleration of a. After a time t, a bolt falls from the ceiling of the lift, the time duration of free fall of the bolt will be (g is acceleration due to gravity)
A
√(2d/(g+a))
B
√(2d/(g-a))
C
√(d/(g+a))
D
√(d/(g-a))
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