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20-06-2018
Physics

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A train travels 98 kilometers in 4 hours, and then 61 kilometers in 3 hours. What is its average speed?

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WrappinUp WrappinUp

20-06-2018

speed (velocity)=distance/time

V1=98km/4hr=24.5km/hr
V2=61km/3hr=20.3km/hr

Average speed (velocity)=total velocity/ number

Average speed (velocity)=44.8km/hr/2=22.4

So the average speed is 22.4km/hr

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