A car travels 100km ata speed of 60 km/hr and return with a speed of 40 km/hr calculate the average speed of the whole journey
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S = 100 Km
V1 = 60 km/hr
V2 = 40 km/hr
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Vav = 2v1v2/v1+v2 = 4800/100 = 48 km/hr
_____________________________________________________________
S = 100 Km
V1 = 60 km/hr
V2 = 40 km/hr
_____________________________________________________________
Vav = 2v1v2/v1+v2 = 4800/100 = 48 km/hr
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