Question

A particle Travels a distance d at speed V1 and comes back to the same point with speed V2 find the average velocity and average speed of the particle ​

Answer 1

Answer:

Average Velocity is zero since total displacement is zero .

For average speed calculate total time

$= \frac{d}{v1} + \frac{d}{v2} = d\frac{v1 + v2}{v1 v2}$

Average speed

$\frac{total \: \: distance}{time} = \frac{2d}{d\frac{v1 + v2}{v1 v2} } = \frac{2v1v2}{v1 + v2}$