From Citizendium, the Citizens' Compendium
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- Kinematics Video. Provided by the National Science Foundation & NBC Learn. Runtime: 5:26. Science360 Knowledge Network
- "NHL skaters can reach speeds in excess of 20 miles (32km) per hour, and during some short bursts approach 30 miles (48 km) per hour. Kinematics, the branch of classical mechanics, helps describe a player's movement across the ice by defining his position, velocity and acceleration."