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If a car covers two fifth distance with v1 speed and three fifth distance with v2 speed then the average speed is

If a car covers two fifth distance with v1 speed and three fifth distance with v2 speed then the average speed is
 

Grade:11

1 Answers

Khimraj
3007 Points
2 years ago
average speed = distance covered/time taken
distance = d
time taken = (2d/5)/v1 + (3d/5)/v2
then average speed = 5*v1*v2/(2*v2 + 3*v1)
Hope it clears.

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