Question

a car covers the first half of the distance between two places at a speed of 40 km per hour and second half with the speed of 60 km per hour what is the average speed of the car? pls explain with details​

Answer 1

Answer:

Given, speed in first half, v1=40kmh−1.

Speed in second half, v2=60kmh−1.

∵ Car covers equal distance with different speeds.

∴ Average speed of car

vav=2v1v2v1+v2

vav=2(40)(60)40+60=48kmh−1

Explanation:

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