Question

In a Watt governor, the weight of the ball is 50 N and the friction at the sleeve is 10 N. The coefficient of detention would be:

1. 5
2. 0.5
3. 0.2
4. 0.1

Answer 1

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