Homework Help: applied maths

Posted by Anonymous on Saturday, September 10, 2011 at 11:44am.

A tram starts from rest atone station and comes to a stop one minute later at the next. It accelerates uniformly at 2m/s2 until it reaches a speed of 20m/s. It travels at this constant speed for a certain time until it decelerates back to rest at 4m/s2. Find the average velocity of the tram over the entire journey.

applied maths - Mgraph, Saturday, September 10, 2011 at 12:40pm
The average velocity=distance/time, time=60s
distance=2*10^2/2+20*45+4*5^2/2=1050m

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