A block of mass 2kg is held at rest against a rough vertical wall by passing a horizontal (normal) force of `45 N`. Coefficient of friction between wall and the block is equal to 0.5. Now a horizontal force of `15 N` (tangential to wall) is also applied on the block. Then the block will :

Options

A. Move horizontally with acceleration of `5 m//s^(2)`
B. Start to move with an acceleration of magnitude `1.25 m//s^(2)`
C. Remain stationary
D. Start to move horizontally with acceleration greater than `5 m//s^(2)`

Answer

b