SOLUTION: 1. A loco is traveling at 12km/h when brakes are applied and it takes the loco 6 seconds to come to rest. What is the average deceleration rate and is it with-in the required speci

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Question 861724: 1. A loco is traveling at 12km/h when brakes are applied and it takes the loco 6 seconds to come to rest. What is the average deceleration rate and is it with-in the required specification?
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Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
You need to use consistent units so convert from kph to m/s.
12km%2Fhr*1000m%2Fkm*1%2F3600hr%2Fsec=10%2F3m%2Fs
So then,
a%5Bave%5D=%28v%5Bf%5D-v%5B0%5D%29%2Ft=%280-10%2F3%29%2F6=-10%2F18=-5%2F9m%2Fs%5E2