biomechanics - EXAMPLES

impulse momentum relationship - tennis racket

tennis racket has different types of string tensions: looser strings cause the ball to remain on the racket longer so increased power and decreased control and vice versa for tighter strings

impulse momentum relationship - archery

increasing momentum: athletes draw back the bowstring to allow more time for bow to apply force to the arrow

impulse momentum relationship - padding on high jump

decreasing momentum: increases the time the force is applied which reduces the peak force experienced by the body

impulse momentum relationship - cheerleading

increasing momentum: through applying maximum size force through effective force summation + decreasing momentum: through when catching by bending the knees to increase the time momentum is taken back to zero

angular momentum - running

runners flex their knees during a strike to reduce the legs moment of inertia

third class lever - golfing

generates increased club speed and hits the ball larger distances which requires greater strength and control as a trade off is reduced accuracy and ability to swing

third class lever - lacrosse

lacrosse creates a speed multiplier by extending the length of the resistance arm to allow players to throw balls at faster speeds

drag - swimming

swimsuits are designed to help improve buoyancy and reduce drag through the tight fitting and aerodynamic structure

drag - cycling

aerodynamic helmets, bike/wheel design, posture and clothing all help to reduce drag