# An airplane travels at an average speed of 600 m/s on an outward flight and 400 m/s on the return flight over the same distance. What's is the average speed of the whole flight?

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Note that the answer is not 500m/s but 480 m/s. Please explain why not?

Note that the answer is not 500m/s but 480 m/s. Please explain why not?

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Milan S#
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Dec 7, 2017

let the distance travelled by the the plane during

outward flight

Also distance travelled during return flight

average speed

Average speed{v}

substituting values of

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