SOLUTION: Pls. help me with this question. I don't know what to do. A golf cart has an acceleration of 0.5m/s^2. What is its speed after in covered 20m starting from rest? Dose this qu

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Question 148804: Pls. help me with this question. I don't know what to do.
A golf cart has an acceleration of 0.5m/s^2. What is its speed after in covered 20m starting from rest?
Dose this question mean that the initial velocity is 0??

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
The problem states the golf cart starts from rest -- so the initial velocity is 0.
You are given a distance, an acceleration and an initial velocity. So you can use
d+=+%28a%2F2%29t%5E2+%2B+v%5B0%5Dt+%2B+d%5B0%5D to find that time
20+=+%280.5%2F2%29t%5E2+%2B+0+%2B+0+
80+=+t%5E2
8.94+=+t
It takes 8.94 seconds to go 20m
You are asked, how fast are you going when you get to 20m?
v%5Bt%5D+=+at+%2B+v%5B0%5D
v+=+0.5%288.94%29+%2B+0
v+=+4.47m%2Fs