there are regularly spaced poles along a straight railway track distance between two poles is 100m a passenger in the train observes the successive at time intervals of 3 and 2 seconds respectively find acceleration of the trains assuming it to be uniform
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Answer:the velocity of the train as it crosses certain pole be u.Since from this pole the distance of the next pole is 90m90m and next pole is 180m180m , therefore usings=ut+12s=ut+12at2at290=u(3)+1290=u(3)+12a(3)2a(3)2180=u(3+2)+12a(3+2)2180=u(3+2)+12a(3+2)2Solving we get , a=6ms−2a=6ms−2 Hence 6m/s^2 is the correct answer
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