A train starts from rest at a station and moves along a straight track with uniform…

PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A train starts from rest at a station and moves along a straight track with uniform acceleration until its speed reaches

20\,\text{m/s}

. During this period it covers a distance of

200\,\text{m}

. (i) Find the time taken by the train to attain the speed of

20\,\text{m/s}

. (ii) Calculate the magnitude of the train’s acceleration during this interval.