1.

Why do we prefer to use a wrench of longer arm?

Answer»

Torque or turning effect due to a force is maximum when r is maximum.We prefer to use a wrenchwithlong armbecause when the length of thearm(r) islong, the force (F) required to produce a given turning effect ( x ) is smaller. Hence, a nut can be unscrewed easily.



Discussion

No Comment Found

Related InterviewSolutions