Two identical weights of mass M are linked by a thread wrapped around a frictionless pulley with a fixed axis. A small weight of mass 'm' is placed on one of the weights. What is reaction force between m and M?

Options

A. `(2Mmg)/(2M+m)`
B. `(Mg(M+m))/(2M+m)`
C. `(mg(M+m))/(2M+m)`
D. `(2Mg(M+m))/(2M+m)`

Explanation

`a=(m)/(2M+m)g`. . . . . . (i)
`mg-N=ma` . . . ..(ii)