A block of mass $5 \mathrm{k}\mathrm{g}$ is (i) pushed in case $\left(\mathrm{A}\right)$ and (ii) pulled in case $\left(\mathrm{B}\right),$ by a force $\mathrm{F}=20\mathrm{ }\mathrm{N},$ making an angle of ${30}^o$ 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 $\left(\mathrm{B}\right)$ and case $\left(\mathrm{A}\right)$ will be:
$\left(\mathrm{g}=10\mathrm{m}\mathrm{ }{\mathrm{s}}^{-2}\right)$

• A

  $3.2 \mathrm{m}\mathrm{ }{\mathrm{s}}^{-2}$
• B

  $0 \mathrm{m}\mathrm{ }{\mathrm{s}}^{-2}$
• Correct answer
  C

  $0.8 \mathrm{m}\mathrm{ }{\mathrm{s}}^{-2}$
• D

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

Hence, the correct answer is option: 'C'.