A block of mass 5 kg is (i) pushed in case (A) and (ii) pulled in case (B), by a force F = 20 N, making an angle of 30° with the horizontal, as shown in the figures. The coefficient of friction between the block and floor is $$\mu$$ = 0.2. The difference between the accelerations of the block, in case (B) and case (A) will be: (g = 10 m s$$^{-2}$$)

A

3.2 m s$$^{-2}$$

B

0 m s$$^{-2}$$

C

0.8 m s$$^{-2}$$

D

0.4 m s$$^{-2}$$