Posted by: Skipper (csu2727@yahoo.com) on Sun Jan 9 19:53:47 2000

Steve,
Thanks for the response - this is good stuff.

>>>>> You sais: "If the force you apply to the ball, as you're saying, is F= MA, and the batspeed is constant, this means acceleration is zero, therefore the force is zero! With no acceleration, F becomes zero, because anything multiplied by zero, is still ZERO!" >>>>>

Clairfy this: I understand that if A=0, F=0 also. But unless A=V (velocity) I think you didn't swing.

>
>>>>Steve: If the bat could move faster after contact than before contact (which is impossible), you've struck the ball with less than maximum batspeed. You have to look at it as a moment in time (for all practical purposes, the changes in the speeds of bat and ball are instantaneous.) The bat instantaneously loses momentum and the ball instantaneously gains some."

Response: I view this (acceleration through the ball) as a coaching cue and do understand (better now) the true physics. However, it is not too simple a statement to say that the ball gained momentum. Did the ball not come to a complete 0-MPH stop before reversing itself on it's new path. Please explain the instantaneous gain of momentum with a complete reversal. (Transfer of inertia?)

>Looking forward to your slide rule response.
Skipper

Followups:
 Re: Steve Great Answer SteveT [ Mon Jan 10 09:17:42 2000 ] Re: Re: Steve Great Answer NickKio [ Mon Jan 10 11:11:57 2000 ] Re: Re: Re: Steve Great Answer SteveT [ Mon Jan 10 12:05:22 2000 ] Re: Re: Re: Re: Steve Great Answer Jeff [ Mon Jan 10 15:25:46 2000 ]

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