Block `A` of mass `m` is placed on a plank `B`. A light support `S` is fixed on plank `B` and is attached with the block A with a spring of spring constant `K`. Consider that initially spring is in its natural length. If the plank `B` is given an acceleration a, then maximum compression in the spring is `(xma)/(k)`. Find the value of `x` (All the surface are smooth)

Options

A. `1/2`
B. `2`
C. `1`
D. `4`

Answer

B