This may not be the conventional way of serving a tennis ball but it’s a great application of conservation of momentum. Â As the ball and racket rebound off the ground, the racket transfers some of its momentum to the ball. Â This launches the ball high enough to allow the tennis player to deliver the serve. Â Give it a try – but don’t use an expensive racket!
How would you use this video in your class? Â Please comment.
Do you have a favourite science of sport video? Â Let’s share. Â Send me the link at staoblog@stao.org
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