A bird watcher meanders through the woods, walking 1.07 km due east, 0.533 km due south, and 4.62 km in a direction 50.1 ° north of west. The time required for this trip is 1.451 h. Determine the magnitudes of the bird watcher's (a) displacement and (b) average velocity.

Answer 1

1.07 E = <1.07,0>
.533 S = <0,-0.533>
4.62 @ W50.1°N = <-2.963,3.644>

add them all up and you have a final displacement of

<-1.893,3.111> = 3.642 @ N31.3°W
now you can figure the velocity