Correct Answer - Option 3 : 0.2
Concept:
Coefficient of detention is given by:
\(\frac{{Friction\;force\;at\;sleeve}}{{Weight\;of\;ball}}= \frac{f}{{Mg}} \)
Calculation:
Given:
Weight of the ball = 50 N, Friction force (f) = 10 N.
Coefficient of detention \(=\frac{{Friction\;force\;at\;sleeve}}{{Weight\;of\;ball}}= \frac{f}{{Mg}} \)
Coefficient of detention \(= \frac{{10}}{{50}}\)
Coefficient of detention = 0.2