Question

Q4: A mechanic tightens the nut of a bicycle using a 15 cm long spanner by exerting a force of 200 N. Find the torque that has tightened it.​

Answer 1

To find the torque, we need to multiply the force applied by the distance from the pivot point (or axis of rotation).

The formula for torque is:

Torque = force x distance

Given:

Force applied (F) = 200 N

Distance from pivot (D) = 15 cm = 0.15 m

Torque = 200 N x 0.15 m

Torque = 30 Nm

Therefore, the torque that has tightened the nut is 30 Nm.