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A car travels half the distance with constanst velocity 40km/hr. What is the average velocity of the car? |
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Answer» 48km/hrExplanation:let x be the DISTANCE TRAVELLED by the car..x/2 be half the distance now time t taken by the car with a VELOCITY 40km/hr is x/80hr (time=distance/speed) time t taken by the car with a velocity 60km/hr is x/120 hr. now avg velocity= x/2+x/2 x/80+x/120 = x*9600 200x = 48km/hr |
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