What is the total torque acting on a lever subject to a 10N force acting down 2m to the right of the fulcrum, a 20N force acting down on the fulcrum, and a 5N force acting down 1m to the left of the fulcrum?
A. 40Nxm clockwise
B. 15Nxm clockwise
C. 55Nxm counterclockwise
D. 0
B
The lever rotates around its fulcrum, so the fulcrum is the pivot point. The net torque is therefore 15Nxm in the direction of the 20Nxm torque, or clockwise.