## anonymous 3 years ago a man running on a straight path at 3 meters per second accelerates uniformly to a speed of 5.23 meters per second in 9.65 seconds. What is the total distance traveled? What formula can i use?

1. anonymous

$x _{f}=x _{i}+v _{1}\Delta t+\frac{ 1 }{ 2 }a \Delta t ^{2}$

2. anonymous

whats a?

3. anonymous

a would be the acceleration.

4. anonymous

what would it be in this case though? like what number?

5. anonymous

Actually the first equation you should use is this one $v _{f}=v _{i}+a \Delta t$

6. anonymous

7. anonymous

ohh so first we solve for acceleration and then plug it into the other formula?

8. anonymous

then you could actually just use the formula $v _{f}^{2}=v _{i}^{2}+2a \Delta x$ and compute the total distance.

9. anonymous

so you actually won't even need the first formula, so you can disregard it.

10. anonymous

what did u end up getting for acceleration because i got 4 and then did the problem and got it wrong..

11. anonymous

12. anonymous

just kidding!

13. anonymous

i got it! haha i divided wrong

14. anonymous

you should setup the problem and show me how you did it. but the answer came out to be 39.7

15. anonymous

ok good job :)

16. anonymous

lol yeah i figured it out haha i have some more questions and i dont know what formulas to use and i have my test tomorrow, would u mind helping me out?

17. anonymous

i dont mind reposting it so i could give u the best answer but would u mind helping me?

18. anonymous

sure. could you make a new thread for it though? This one is cluttered now.

19. anonymous

yes! no problem! gracias

20. anonymous