Since power for his purposes
is nothing more than ball speed off the racket, any absorbtion of
energy from the ball
Right - any inelasticity in the collision (the missing energy going
into heating up the racket, the ball and making satisfying thwock
sounds) will reduce the rebound speed
On Aug 27, 2007, at 1:37 PM, Robert Clair wrote:
Wrong - if by delay you mean the time it takes for the ball to squish
into the racket, reverse direction and come off. This time interval
depends on the spring constant involved (essentially the elastic
characteristics of the ball and the
