Which of the following activities is an example of a third-class lever?

In bullet point form, list three ways the arrangement of fascicles affect the function of a muscle.

A person uses a crowbar to pry a nailed board from the ground. The point where the crowbar contacts the ground acts as the axis of rotation, the person’s hands apply the effort force on one end of the crowbar, and the nail provides the resistance on the other end. What class of lever is this?

The branch of mechanics that deals with the causes of motion is called: 

According to Newton’s Second Law, acceleration is:

Calculate the mechanical advantage of a lever given an applied force of 225N and an applied force moment arm of 1.5m with a resistive force of 75 N and a resistive moment arm of .65m [1] What class is this  lever system? [2]

Center of gravity and center of mass both describe the same thing. 

When using a reaction board technique to estimate center of mass, what should you tell your subject to do?

Use Newton’s third law (action-reaction) and Newton’s second law for rotation (α=τ/I) to complete the following statements by filling in the blanks. A tennis ball strikes a tennis racket off-center. The torque experienced by the ball is [1] the torque experienced by the racket. The resulting angular acceleration of the ball is [2] the resulting angular acceleration of the racket.

A force applied some distance from a fixed center of mass of an object will cause