# You bicycle 3.2 km east in 0.1 h, then 3.2 km at 15.0 degrees east of north in 0.21 h, and finally another 3.2km due east in 0.1 h to reach its destination. What is the average "velocity" for the entire trip?

##### 1 Answer

Let the direction of displacement towards **EAST** be along positive direction of x-axis and that of **NORTH** be along positive direction of y-axis. So the unit vector along these directions be

First displacement (

So

Second displacement (

So

Third displacement (

So

Hence net displacement

The average velocity

And the direction of average velocity along North of East is