A block of mass $5 kg$is $\left(i\right)$pushed in case $\left(A\right)$ and $\left(ii\right)$ pulled in case $\left(B\right)$ , by a force of $F =20 N$ , making an angle of ${30}^0$ with the horizontal, as shown in the figures. The coefficient of friction between the block and floor $\mu = 0.2$.The difference between the accelerations of the block, in case $\left(B\right)$ and case $\left(A\right)$ will be 

$(g = 10 m{s}^{-2})$