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Old 12-28-2012, 06:32 AM   #44
treblings
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Quote:
Originally Posted by JohnYandell View Post
The balls are leaving the racket on the top forehands with 2500rpm of spin or more. And the spin actually increases after the bounce. The bottom half of the ball grabs the court and the friction causes the top half to accelerate. After the bounce the spin can double. We've measured balls spinning at over 5000rpm before the contact.

So between the hits, the speed is halved and the spin is doubled. What does it all mean?
probably means that a teaching pro working with potential future elite players should direct his students towards more spin, or does it?
can we predict the direction tennis will take in the next 20 years?
will they make the courts faster again, develop different balls that favor pace and not spin?
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