A car travels first 50 km with a constant speed of 30 km/h and next 40km with a constant speed 60 km/h . Calculate the average speed . In physics
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I think this is correct.....I just tried.......
t1= 50/30=5/3hr
t2= 40/60=2/3hr
avg speed= total distance/total time=50+40/(5/3)+(2/3)=90*3/7=270/7=38.571km/hr
t1= 50/30=5/3hr
t2= 40/60=2/3hr
avg speed= total distance/total time=50+40/(5/3)+(2/3)=90*3/7=270/7=38.571km/hr
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