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a train travels from one station to another station at the speed of 40km/h and returnes at a speed of 60km/h. calculate the average speed and average velocity
Asked by layamariam2004 | 18 Nov, 2020, 07:49: AM
Average speed = distance / time

Let d be the distance between one staion and another station.

If t1 is time taken for onward journey = distance /speed = (d/40) hr

If t2 is time taken for return journey = distance/speed = (d/60) hr

average speed = total distance / time

--------------------------------

average velocity = displacement / time

since train returned to starting point , displacement = 0

hence average velocity = 0
Answered by Thiyagarajan K | 18 Nov, 2020, 10:41: AM
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