Because they are caused by the excess exercise and lack of rest to recover the body.
Explanation:
Over use injuries can be say that the inflammation of the connecting tissues which attaches the bones to the muscles. They can be occur if someone does not modify his or her workout after a break.
These injuries particularly are frustrating set backs because you are not give a much time of rest to your body to recover from these injuries.
The formula for the pendulum experiment is based on the assumption that the amplitude is small so that the angle is approximately equal to the Sine of the angle.
