SOLUTION: Five minutes after starting from rest, a bike’s velocity is 50 km/hr. What is the bike’s acceleration?

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Question 490371: Five minutes after starting from rest, a bike’s velocity is 50 km/hr. What is the bike’s acceleration?
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
Five minutes after starting from rest, a bike’s velocity is 50 km/hr. What is the bike’s acceleration?
First we change km%2Fhr%7D%7D+to+%7B%7B%7Bm%2Fs

Cancel the km's:

Cancel the hr's

Cancel the min's

All that's left is
expr%28%2850%2A1000m%29%2F%2860%2A60s%29%29
expr%28%2850000m%29%2F%283600s%29%29
expr%28%28500m%29%2F%2836s%29%29
expr%28%28125m%29%2F%289s%29%29
a+=+%28v%5Bf%5D-v%5B0%5D%29%2Ft
a+=+%28expr%28125m%2F%289s%29%29-expr%280m%2Fs%29%29%2F%285s%29
a+=+%28expr%28125m%2F%289s%29%29%29%2F%285s%29%29
a+=+expr%28125m%2F9s%29%2Aexpr%281%2F%285s%29%29%29
a+=+125m%2F%2845s%5E2%29
a=expr%28125%2F45%29expr%28m%2Fs%5E2%29
a=expr%2825%2F9%29expr%28m%2Fs%5E2%29
a=2.778expr%28m%2Fs%5E2%29