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Finding Time from Accel and Distance 
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#1
Mar2707, 02:24 PM

P: 1

Not school related, but I guess it could be a homework problem.
I am redoing my racing script on my car game and need some help. I have been looking around in many places and can't seem to find how to do this problem. 1. The problem statement, all variables and given/known data I need to find the time it takes to travel 0.05 miles at a given acceleration starting at a given speed. I also need to find out the final speed. So if a car starts from a stop (0 mph) and can travel 060mph in 7 seconds. How long will it take to travel 0.05 miles and what will its final speed be. 2. Relevant equations time = change/acceleration d=st 3. The attempt at a solution So far I have its average acceleration at 8.57 mph/s if I can find the time I will be able to find its final speed. If its 1 second it will be 8.75 mph, 2 seconds will be 35mph. (Not to sure on that) But I did (2 seconds^2) * 8.75 


#2
Mar2707, 02:57 PM

P: 1,345

Is it going to be a constant acceleration? If it is you can use
[tex](V_f)^2=(V_i)^2+2a(d_f)[/tex] Where [tex]V_f =[/tex] Final Velocity, [tex]V_i =[/tex] Initial Velocity, [tex]d_f =[/tex] the final displacement. From there you can find the time it takes in a multitude of ways. 


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