home > q&a board > physics > topic: average acceleration...please help!

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posted by  jennab on 9/10/2008 11:43:28 AM  |  status: Live  

Average Acceleration...PLEASE HELP!

Course Textbook Chapter Problem
General Physics Physics (Custom Edition) 2 N/A
Question Details:
Question: A baseball pitcher throws a baseball with a speed of 41m/s. Estimate the average acceleration of the ball during the throwing motion. In throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5m, from behind the body to the point where it is released.

This a 1st year physics question....im stuck! Any help would be greatly appreciated!! Thanks!

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posted by booboo123 on 9/13/2008 10:51:06 AM  |  status: Live
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jennab's comment:
"sorry for the late rating!"
Response Details:
your equation is:

v2  =  2*a*d

rearranging to find acceleration:

a = V2 / 2d

plug in your values:

a = (41 m/s)2  /  (2* 3.5m)

a =  240.1 m/s2

*please don't forget to rate me :)
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