A volleyball player is attempting to improve their jump serve. The coach has identified that the player is not consistently maximizing their vertical jump height and is struggling to control the angle and speed at which they hit the ball. The coach is using qualitative movement analysis to assist.
b. Explain how the biomechanical principles of projectile motion (height and angle of release) and Newton’s second law (acceleration) apply to the volleyball player’s jump serve, and how these principles can be used to improve the serve’s effectiveness.
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Create Free Account Log inThis is a free VCE Units 3 & 4 Physical Education practice question worth 6 marks, testing your understanding of Biomechanical principles. It falls under How are movement skills improved? in Unit 3: Movement skills and energy for physical activity, sport and exercise. Submit your answer above to receive instant AI-powered marking and personalised feedback.
This unit introduces students to principles used to analyse human movement from a biophysical perspective. Students use a variety of tools and coaching techniques to analyse movement skills and apply biomechanical and skill-acquisition principles to improve and refine movement in physical activity, sport and exercise. They use practical activities to demonstrate how correctly applying these principles can lead to improved performance outcomes. Students consider the cardiovascular, respiratory and muscular systems and the roles of each in supplying oxygen and energy to the working muscles. They investigate the characteristics and interplay of the three energy systems for performance during physical activity, sport and exercise. Students explore the causes of fatigue and consider different strategies used to postpone fatigue and promote recovery.
In this area of study, students examine the biomechanical and skill-acquisition principles that can be applied when analysing and improving movement skills for participation and performance. Through practical activities, students explore and analyse their own movement and use coaching to investigate factors that influence skill acquisition. They develop an understanding of how appropriately applying biomechanical and skill-acquisition principles leads to the development of optimal movement patterns to enhance participation and performance.
biomechanical principles for analysis of human movement: - linear and angular concepts of human movement including force/torque, momentum, impulse and speed/velocity - Newton’s three laws of linear motion: inertia, acceleration and action–reaction - projectile motion (height, angle and speed of release) - anatomical third-class levers (axis, force, resistance and mechanical advantage) - equilibrium: stability (centre of gravity, base of support and line of gravity) - qualitative movement analysis stages (preparation, observation, evaluation and error correction)
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