A Screw Jack Has a Screw with a Pitch of 12

Multiple Choice

A screw jack has a screw with a pitch of 12 mm and a jack handle with a radius of rotation of 0.4 m. If the load to be lifted by the jack is 10 kN, the effort that must be applied to the jack handle is:

A) 47.6 N
B) 95.6 N
C) 191.2 N
D) 300 N