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How do I find velocity from acceleration?

  • #1
How do I find velocity from acceleration??

1. An automobile and a truck start from rest at the same instant, with the automobile initially at some distance behind the truck. The truck has a constant acceleration of 2.00 , and the automobile an acceleration of 3.42 . The automobile overtakes the truck after the truck has moved a distance 41.0 .



r=r+Vt+1/2at^2



I get 40=vf^2/4, which gives me 40, but that's not right.
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
25,832
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Welcome to PF!

Hi dyslexiateech ! Welcome to PF! :smile:

(try using the X2 tag just above the Reply box :wink:)

Show us your full calculations, and then we'll see what went wrong, and we'll know how to hlep! :smile:
 
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