An elevator accelerates upwards at a constant rate. A uniform string of length L and mass m supports a small block of mass M that hangs from the ceiling of the elevator. The tension at distance l from the ceiling is 
. The acceleration of the elevator is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Let 
be the acceleration of the lift.
Mass of lower portion of string 
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