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Old 01-04-2012, 02:59 PM   #49
toly
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Quote:
Originally Posted by ho View Post
Ball is a soft object, on impact it deformed, the harder you hit, the more it deformed, the more it deformed, the more it stay on the string bed, the more it stay on string bed, the more it bounce out.
The harder we hit the ball, the more it is deformed and damaged. The damage of the ball is essential.
If we hit ball with racquet speed 1 mph, coefficient of restitution (if I remember correctly) will be around 70%. If racquet speed is 80 mph, this coefficient is just 30%. Thus, scientific data disagree with your statement.

Quote:
Originally Posted by ho View Post
Just hit the heck out of the ball, arm and body as one unit, you will have such an easy time on the court.
If we rotate fixed passive arm and body as one unit, we will produce around 15% of the possible maximum of the racquet speed. See please Elliot data.
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