A block of mass 1kg lies on a horizontal surface in the truck. The coefficient of friction between the block and the surface is 0.5. If the acceleration of the truck is `6ms^(-2)` the acceleration of the block relative to ground is

Options

A. `6 m//s^(2)`
B. `1.1 m//s^(2)`
C. `4.9 m//s^(2)`
D. `0 m//s^(2)`

Answer

C