Pain in the posterior knee, a "popping" sensation, and a positive posterior sag test indicate what condition?

Torque occurs when two or more forces applied

a. in opposite directions create a rotational movement around an axis of motion, such as two hands turning a wheel. b. in the same direction create a rotational movement around an axis of motion, such as two hands turning a wheel. c. in opposite directions create a linear movement around an axis of motion, such as two hands sliding a wheel. d. in opposite directions create a gliding movement along an axis of motion, such as two hands pulling a wheel.

Damage to the steering wheel and/or dashboard should cause a high index of suspicion for which type of internal injury?

A) Abdominal B) Head C) Thoracic spine D) Cervical spine