The perpendicular distance from the force vector to a joint's axis of motion is referred to as the:

Question

Quizplus · Accepted Answer

The perpendicular distance from the force vector to a joint's axis of motion is referred to as the moment arm or the lever arm. However, the term "moment arm" is more commonly used in biomechanics and refers specifically to the perpendicular distance. The term "lever arm" is often used interchangeably but can also refer to any rigid object that rotates around a fixed point. The moment arm is a crucial component in calculating torque (answer D), which is the product of the force and the moment arm.

The Perpendicular Distance from the Force Vector to a Joint's