Two blocks A and B of masses $5 \mathrm{~kg}$ and $10 \mathrm{~kg}$ respectively are placed as shown in the figure. The coefficient of friction between all the surfaces is 0.2 . Then the acceleration of the block B is $\left(\mathrm{g}=10

• A

  $2.6 \mathrm{~ms}^{-2}$
• B

  $47 \mathrm{~ms}^{-2}$
• C

  $26 \mathrm{~ms}^{-2}$
• Correct answer
  D

  $4.7 \mathrm{~ms}^{-2}$

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