Question

A car covers the first half of the distance between two places at a speed of 40kmh-1 and second half at 60kmh-1 Calculate the average speed of the car.

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Answer 1

Here is the ans hope it's helpful for you☺

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Answer 2

Answer:

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Explanation:

Derivation of the equation for kinetic energy (K.E = ½ m v 2)12-Mar-2014