A train starts from rest and accelerates uniformly in a straight line until, after 10s, it attains a speed of 40m/s. It then continues to accelerate at the same rate until it has traveled a total distance of 500m.(adsbygoogle = window.adsbygoogle || []).push({});

What is the distance travled by the train during the first 10s?

What distance did the train travel during the third second?

Ok this question is very confusing to me. I know that vi=0 and

vf=40 and distance= 500m. The thing i dont get is the first sentence. If u start from rest which is vi=0, how do u accelerate in a straight line to 10s. The thing i m guessing is if u go 4m/s from 0s to 10s. Then from 10s-22s, u travel at 40m/s. The first 10 seconds would equal to 20m, and the last 12 seconds would equal 480 m for a total of 500m. Does anyone know if i m doing this the right way because i feel that i got the beginning part messed up.

So for the first question i would think it is 20meters, and for the second question i think it is 12meters. Anyone can help?

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# Homework Help: Confusing question to me

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