Date post: | 11-May-2015 |
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Sports |
Upload: | kerry-harrison |
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Biomechanics – Part 2
All will be able to:•State and explain the factors that effect projectile motion•Explain angular motion including the conservation of angular momentum and the relationship between the moment of inertia and angular velocitySome will also be able to: •Apply this knowledge to exam questions
Learning Outcomes are:
Projectile motion:Angle of releaseParabolic curve
Horizontal componentVertical component
Height of releaseSpeed of release
Angular motion:Footfall
Negative impulsePositive impulse
Zero impulse(Force time graphs to
show acceleration, deceleration and constant velocity)
Define the following terms and give an equation or applied example as applicable:
Angular velocity, angular acceleration, angular momentumMoment of inertia, angular, moment, moment arm, resistance arm
Effort arm, principle of moments, angular movementConservation of angular movement
Radian, relationship between moment of inertia and angular velocity
The final stage of an endurance race often involves a sprint finish.05 Using Newton’s Second Law of Motion, explain how an athlete is able to accelerate towards the finish line. (3 marks)
Explain how a gymnast can alter the speed of rotation during flight (7)
Using ‘Newton’s First’ and ‘Second Laws of Motion’, explain how
the swimmer dives off the starting blocks. (4
marks)