Question

We prefer to use a long spanner to loosen a tight nut.

• A. True
• B. False

Answer 1

The correct option is A True

1. The turning effect of the force on the body on which it is acting is measured by the moment of a force.
2. The moment of a force depends on the magnitude of the force and the distance from the axis of rotation.
3. The moment of a force about a point is the product of the magnitude of the force and the perpendicular distance of the line of action of the force from the point.
4. $M=F\times d$, where F is force, and d is the perpendicular distance
5. Therefore, a spanner with a longer handle needs less force to generate the same torque than with spanner with a short handle.

Hence, the given statement is true.