An elevator accelrates upward at a constant rate. A uniform string of length L and mass m supports a small block of mass M that hangs from the celling of the elevator. The tension at distance l from the celling is T. the accelration of the elegvator is

Options

A. `(T)/(M+m-(Ml)/(L))-g`
B. `(T)/(2M+m-(ml)/(L))+g`
C. `(T)/(m_(ml)/(L))-g`
D. `(T)/(2M-m+(ml)/(L))-g`

Explanation

`T=(m(L-l))/(L)(g+a)+M(g+a)`
`rArrg+a=(TL)/(m(L-l)+ML)`