Question

assume a plane is flying directly north at 200mph but there is a wind blowing west at 23 mph


(a)express both the velocity of the plane and the veclocity of the wind as vectors using proper notation to represent each direction of motion?

Answer 1

plane=<0, 200>mph

wind=<-23, 0>mph

actual = plane + wind

actual = <0,200> + <-23,0> mph

actual = <-23, 200> mph

Answer 2

so how would i find the velocity vector of the plane and the ground speed? would i have to do something similar to the dot product?

Answer 3

@jennsmi I do not understand

Answer 4

do i do the dot product to find the velocity vector of the plane?

Answer 5

ground speed = |<-23,200>|

Answer 6

The velocity vector of the plane is <0,200>

Answer 7

The resultant vector is <-23, 300>, and the ground speed or "actual speed" is what @sirm3d described

Answer 8

ok okay thank you both!

Answer 9

oh so is the ground speed with the absolute value as : |<-23,200>| or just <-23,200>