# velocity question!

• Aug 19th 2011, 02:33 AM
MathYUNoEasy
velocity question!
http://i53.tinypic.com/htfpro.png

Does anybody know how to solve this? I can't get the answer :(
It's supposed to be 8m/s
• Aug 19th 2011, 03:29 AM
mr fantastic
Re: velocity question!
Quote:

Originally Posted by MathYUNoEasy
http://i53.tinypic.com/htfpro.png

Does anybody know how to solve this? I can't get the answer :(
It's supposed to be 8m/s

Use one of the well known formulas for uniform acceleration: $\displaystyle s = ut + \frac{1}{2} at^2$.

Substitute the given data and solve for u.
• Aug 19th 2011, 03:52 AM
MathYUNoEasy
Re: velocity question!
Wow, thanks, I got the right answer!
This formula isn't in my syllable yet though, I think they're expecting me to solve it in a, well, more tedious way, since they're offering 7 marks. What are other ways to solve this?
• Aug 19th 2011, 12:59 PM
skeeter
Re: velocity question!
Quote:

Originally Posted by MathYUNoEasy
Wow, thanks, I got the right answer!
This formula isn't in my syllable yet though, I think they're expecting me to solve it in a, well, more tedious way, since they're offering 7 marks. What are other ways to solve this?

if this problem is for a grade, then MHF policy prohibits assistance.
• Aug 19th 2011, 01:01 PM
Ackbeet
Re: velocity question!
Quote:

Originally Posted by skeeter
if this problem is for a grade, then MHF policy prohibits assistance.