SOLUTION: What is the velocity of a car that accelerates from rest at 9.0ft/s for 8.0s?

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Question 657268: What is the velocity of a car that accelerates from rest at 9.0ft/s for 8.0s?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
When an object's velocity changes, it accelerates. Acceleration a shows the change in velocity in a unit+time.
Velocity is measured in meters per second, mil%2Fh,ft%2Fs in your case; so, acceleration is measured in %28mil%2Fh%29%2Fh, or mil%2Fh%5E2 ft%2Fs%5E2 in your case, which can be both positive and negative.
a=%28v%5B1%5D-v%5B0%5D%29%2F%28t%5B1%5D-t%5B2%5D%29
a car that accelerates from rest (means v%5B0%5D=0 at v%5B1%5D=9.0ft%2Fs for t%5B0%5D=0 andt%5B1%5D=8.0s
a=%28v%5B1%5D-v%5B0%5D%29%2F%28t%5B1%5D-t%5B2%5D%29

a=%28v%5B1%5D-0%29%2F%28t%5B1%5D-0%29

a=v%5B1%5D%2Ft%5B1%5D

a=9.0%28ft%2Fs%29%2F8.0s

a=%289.0%2F8.0%29%28ft%2Fs%5E2%29

a=1.125%28ft%2Fs%5E2%29