An object covers a distance of 50km at a speed of 40km/hr and a distance of 100km at a speed of 60km/hr.find average speed for entire journey.
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total value distance= 50+100=150m
case1
time= distance / speed
50/40=5/4h
case2
time=100/60=5/3h
then, average speed= 150/(5/3+5/4)
=150/35/12
=150*12/35
=51.4m
case1
time= distance / speed
50/40=5/4h
case2
time=100/60=5/3h
then, average speed= 150/(5/3+5/4)
=150/35/12
=150*12/35
=51.4m
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