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April 19, 2014

April 19, 2014

Posted by **Abby** on Sunday, January 22, 2012 at 10:25am.

- physics -
**drwls**, Sunday, January 22, 2012 at 10:50amBaseballs do not accelerate after being released. You (or your instructor) seem to be confusing acceleration with velocity.

A reasonable speed for a fast ball is 95 mph = 42.5 m/s

Even Sandy Koufax could not throw at 50 m/s, but he came close.

If they had wanted you to compute the force necessary to bunt the ball to a stop, when thrown at that SPEED, they should have told you the time interval of ball-bat contact, or how far the bat is retracted during the bunt.

IF 50 m/s^2 is the deceleration rate that the bat must apply to the ball, then use F = m*a for the force that the bat applies.

I wonder what school district or online institution would assign such a misguided question.

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