In the following lever system, what is the clockwise torque? 18 Nm 240 Nm 360 Nm 480 Nm

Answer:
240 Nm
Explanation:
The clockwise torque is the torque determined only by the force that makes the lever rotating clockwise: therefore, the force of 80 N on the right.
The torque produced by this force is given by:
[tex]\tau = F d[/tex]
where
F is the magnitude of the force
d is the arm
For the force of 80 N on the right,
F = 80 N
d = 3 m (distance from the pivot)
So, the clockwise moment is
[tex]\tau = (80)(3)=240 Nm[/tex]