$A$ body of mass $100\, g$ is sliding down an inclined plane of inclination $30^\circ$. What is the frictional force experienced if the coefficient of friction $\mu = 1.7$?

• A
  $1.7 \times \sqrt{2} \times \frac{1}{\sqrt{3}}\,N$
• B
  $1.7 \times \sqrt{3} \times \frac{1}{2}\,N$
• C
  $1.7 \times \sqrt{3}\,N$
• D
  $1.7 \times \sqrt{2} \times \frac{1}{3}\,N$