1.

a person moves for 200km with 50 kmph next 300 km with 90 kmph and the next 150km with 100kmph speed. find the average speed of the whole journey

Answer»

ong>Answer:

2.70 m/s

Explanation:

a = total d/total TIME

200+300+150/100+90+50

650/240

= 2.70m/s

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