Question

A person moving on a circular track completes round in 3 equal parts v,2v,3v .the average speed of object for entire trip is.

Answer 1

hey mate

here is your answer

here we are using a special formula which is valid only for this type of question.

the average speed of the body is given by:

=3*v1*v2*v3/(v1*v2+v2*v3+v3*v1)

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

=18v³/(2v²+6v²+3v²)

=18v³/(11v²)

=18v/11(answer)