With a 2 meter lever, the fulcrum is 30 cm from the load of 200 pounds. How much "effort" force will be needed to lift it?
Which type of lever describes a wheelbarrow?
A 35 N force is applied on a door knob, which is 0.6 meters from the axis. What is the torque?
What is the cross product of the vector (1,1,0) with (0,2,0) ? What is the magnitude, and what direction does it point?