Calculating Average Force on a Baseball Using F=ma Formula

Thread starter Crichar1
Start date Mar 1, 2009
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Average Forces

AI Thread Summary

To calculate the average force on a baseball using the formula F=ma, the mass of the baseball must be converted to kilograms, resulting in 0.145 kg. Given that the baseball leaves the bat at a speed of 68 m/s after 0.08 seconds, the acceleration is calculated as 850 m/s². The average force is then determined by multiplying the acceleration by the mass, yielding 123.25 N. However, the initial calculation incorrectly used grams instead of kilograms, which is crucial for obtaining the correct force in Newtons. Accurate unit conversion is essential for proper calculations in physics.

Mar 1, 2009

Crichar1

If the baseball (mass = 145 g) stays in contact with the bat for 0.08 s and leaves the bat with a speed of 68 m/s, what is the average force acting on the ball?

F=ma
a=68/.08= 850m/s^2

Average Force=850*145=123250N

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Mar 1, 2009

G01

Science Advisor

Gold Member

You units are incorrect. Your mass needs to be in kilograms for the answer to come out in Newtons.

Mar 1, 2009

Crichar1

thank you!

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