The dynamics of a hockey player body on passing the ball

摘要

We have analyzed the body attitude from a hockey player and considers three conditions, i.e., initial, pushing, and passing the hockey ball. A (165±0.1) cm-hockey player from Sports Faculty at Universitas Negeri Jakarta has demonstrated these three-body attitudes. We started analyzing by first observing and drawing all the force possibilities on the body hockey player and the stick. Then, we project the force possibilities into cartesian coordinates. Finally, we derived the physics law of the dynamic by calculating all the parameters as a function of the physics variable based on Newton's law. The results confirmed that some quantities such as force (F), torque (τ), the distance from the right hand to the axis (R), ball elasticity, and friction (μ) influence the hockey ball motion. Hence, instead of the player skill, we recommend that the coach and a hockey player can consider some physics quantities to improve their performance.