Answer:
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.