Question

answer this with explanation and I will follow you​

Answer 1

Answer:

Let the person be moving on a circular track of radius "r"

therefore the circumference of circle is 2πr

if the lesson completes rounds in three dual parts then the length of each part will be

2πr/3

and the velocity for each part is given to be as v, 2v, 3v respectively...

Average speed =Total distance / Total time

=2πr/(2πr/(3v) +2πr/(3*2v)+2πr/(3*3v))

=2π/(2π/(3v) +2π/(6v) +2π/(9v))

=1/(1/v*(1/3+1/6+1/9)

=1/(1/v*((6+3+2)/18)

=1/(1/v*(11/18))

=18v/11 is the average speed...

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Answer 2

Answer:

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HOPE THIS ANSWER MAY HELP U .please accept the ans.

HOPE THIS ANSWER MAY HELP U .please accept the ans. AND don't forget to follow me

HOPE THIS ANSWER MAY HELP U .please accept the ans. AND don't forget to follow memark as BRAINLIST