A car travels first 300 kms at an average rate of 30 kmph and further travels the same distance at an average rate of 50 kmph.Determine the average speed of car over the whole journey .
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we need to find the time
t = distance/ speed
t1= 300/30
= 10h
t2 = 300/50
= 6h
total time 10+6 =16h
total distance = 600
average speed = 600/16
37.5km/h
t = distance/ speed
t1= 300/30
= 10h
t2 = 300/50
= 6h
total time 10+6 =16h
total distance = 600
average speed = 600/16
37.5km/h
ravillasaraswathi127:
very usefull and easy to understand
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