M Karim Physics Numerical Book Solution Class 11 Apr 2026
A block of mass 5 kg is placed on a horizontal surface. A force of 20 N is applied to the block, causing it to move with a uniform acceleration of 2 m/s². What is the coefficient of friction between the block and the surface?
$$\mu = \frac{10}{5 \times 9.8} = 0.2$$
Given: $F = 20$ N, $m = 5$ kg, $a = 2$ m/s² m karim physics numerical book solution class 11
