Question

A person travels along a straight road for the first half with velocity v1 and second half with velocity v2 .the mean velocity of the man is

Answer 1

Answer:

$\frac{1}{\frac{1}{v1}+\frac{1}{v2}}$

Explanation:

$Average Velocity =\frac{Displacement}{Total Time}$

$Average Velocity =\frac{s}{\frac{s}{v1}+\frac{s}{v2}}$

$Average Velocity =\frac{1}{\frac{1}{v1}+\frac{1}{v2}}$