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What do these five sports have to do with science?

I already know a few things about why they have to do with science, when I say science I'm talking about Mechanical Advantage and Efficiency, things like velocity, levers(first class,second class, third class), friction, simple machines(pulley, gear,wheel etc...) and many more. Anyway, here are the sports: Diving (diving board- second class lever) Hockey (hockey stick-third class lever) Biking ( friction and wind resistance) Running (friction or traction) Tennis (racket-third class lever) Please use some scientific words, but easy enough for me to understand. Also, explain how and why they have to do with science.

Public Comments

1. diving- flotation hockey- center of gravity Biking-centrifugal force running-anatomy--cardiovascular, coordination tennis-hand eye cordination, which occurs from the brain sending a message down the spine to the hand, holding the racket unsure, if this is what you were looking for, the question was kind of vague