A sphere of 10 gm is placed at a height of 1.2 m from the ground. It falls from there (with initial zero velocity) along a slanted piece of wood and its velocity is \( 4 \mathrm{~ms}^{-1} \) when it reaches the ground. Determine the work done by friction as it falls.

A 0.08 J

B 0.0376 J

C 0.197 J