Pitch Speed Revalive to Bat Speed

In summary, the conversation is regarding a physics project where the goal is to calculate the velocity of a fastball thrown at 95mph when hit by a bat with a speed of 86.99mph. The weight of the ball is 5oz and the weight of the bat is 31oz. The contact time between the ball and the bat is 0.005 seconds. The equations used for this calculation are F=ma, Fxdelta t = mVf - mVi, and (mass1 times velocity1 + mass2 times V2)i = (mass1V1 + m2V2)f. The conversation also mentions a helpful website for further explanation and assistance with the calculations.
  • #1
CardsFan
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Homework Statement



It's for a physics project, in which I'm trying to calculate the velocity applied to a fastball thrown at 95mph, when the bat speed of a hitter is 86.99mph. The weight of the ball is 5oz, the weight of the bat 31oz, and we'll go with contact on the ball at .005s.(This is only the small part, the rest I can do alone)

Homework Equations



If I have the right ones... F=ma
Fxdelta t = mVf - mVi
(mass1 times velocity1 + mass2 times V2)i = (mass1V1 + m2V2)f


The Attempt at a Solution



Just not sure where to begin.

The only helpful site has been this http://www.kettering.edu/~drussell/bats-new/batw8.html
but i don't think i understand the guys explanations.


Thanks in advance for the help.
 
Last edited by a moderator:
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  • #2
Anyone? Please...
 
  • #3
It is difficult to solve this precisely because the ball can take spin off the bat and that drastically alters its speed and path. But if you assume a clean collision then using conservation of momentum, your 3rd formula, it is possible to estimate of the balls velocity. I thought the site you quote does it rather well. Just rearrange the formula so V1 is on the left and plug in some numbers.
 

FAQ: Pitch Speed Revalive to Bat Speed

What is Pitch Speed Revalive?

Pitch Speed Revalive is a measure of the speed at which a baseball or softball is thrown by a pitcher. It is typically measured in miles per hour (mph) and is an important factor in the game as it affects the batter's ability to hit the ball.

What is Bat Speed?

Bat Speed is a measure of the speed at which a batter swings their bat. It is also measured in miles per hour (mph) and is an important factor in hitting a baseball or softball. The faster the bat speed, the more power the batter will have behind their swing.

How does Pitch Speed Revalive affect Bat Speed?

Pitch Speed Revalive and Bat Speed have a direct correlation. The faster the pitch, the faster the bat must be swung in order to make contact with the ball. This means that a higher pitch speed will require a higher bat speed to successfully hit the ball.

Is there an ideal Pitch Speed Revalive to Bat Speed ratio?

There is no specific ideal ratio between Pitch Speed Revalive and Bat Speed as it can vary depending on the individual player's skills and strengths. However, in general, a higher bat speed in relation to the pitch speed will result in a more powerful hit.

How can players improve their Bat Speed in relation to Pitch Speed Revalive?

There are several ways to improve Bat Speed in relation to Pitch Speed Revalive. These include proper training and conditioning, using a lighter bat, and practicing timing and technique. It is also important for players to have a strong and balanced swing and to maintain good overall physical fitness.

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