A train starts from rest. The train (including the locomotive and all the

Bob

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freight cars) is 120 m long. A perso? A train starts from rest. The train (including the locomotive and all the freight cars) is 120 m long. A person standing still next to the front train (not in front of it -- she is NOT run over!) notices that the end of the last freight car passes her exactly 2 minutes after the train started moving.

(i) What is the average speed of the train during the 2-minute time interval?
(ii) Assuming that the train accelerates at a constant rate, what is the speed of the train when the end of the last freight car passes the observer?
 
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