Question

between 2 stations a train accelerates from rest uniformly at first, then moves with constant velocity and finally retards uniformly to come to rest. If the ratios of the times taken is 1:8:1 and the maximum speed attained is 60kmph, the average speed over the whole journey is A. 48kmph ; B. 52kmph ; C. 54kmph ; D. 56kmph

Answer 1

Here the maximum speed is 60km/hr which can be only possible when it travels in constant velocity or the final velocity of aacelarated motion