4.3.12

Outline the Bernoulli principle with respect to projectile motion in sporting activities.

The Bernoulli principle states that the pressure exerted by a fluid is inversely related to its velocity. This principle is used to generate a life force. For example, in golf the golf clubs are designed to create backspin on the golf ball during impact. This backspin keeps the ball in the air longer and thus results in a further distance traveled. This happens because a lift force is created by the higher velocity airflow on the top of the ball resulting in an area of low pressure, while the velocity of the air is lower on the bottom of the ball thus creating a high-pressure zone.