Question

A car moves from X to Y with a uniform speed vu and returns to Y with a uniform speed vd. The average speed of this sound trip is

Answer 1

Answer:

2 v1 v2 / v1+ v2

Explanation:

v1= first spped of trip

v2= speed of return trip.

Note- This is direct formula which can be applied when the DISTANCES TRAVELLED ARE SAME....

But, the basic concept is that

Vavg= Total Distance travelled/ Total time taken

The above formula has been derived from this ultimately...

HOPE IT HELPS