## A pilot flies her route in two straight-line segments. The displacement vector A for the first segment has a magnitude of 232 km and a direc

Question

A pilot flies her route in two straight-line segments. The displacement vector A for the first segment has a magnitude of 232 km and a direction 30.0o north of east. The displacement vector B for the second segment has a magnitude of 168 km and a direction due west. The resultant displacement vector is R = A + B and makes an angle θ with the direction due east. Using the component method, find (a) the magnitude of R and (b) the directional angle θ.

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1 week 2021-07-21T12:42:20+00:00 1 Answers 0 views 0

a) 121 km

b) 74°

Explanation:

To start with, we assume that there exist two components, the East and the North. We’d be representing the East, by “e” and the North, by “n”

First vector:

east1 = 232 cos 30 = 201

north1 = 232 sin 30 = 116

Now, that of the second vector will be

east 2 = – 168

north2 = 0

Next, we add the two together and get

East components

201 – 168 = 33 east

North components

116 + 0 = 116

Therefore, the magnitude has to be

magnitude = √(33² + 116²)

Magnitude = √14545

Magnitude = 121

tanθ = 116/33

Tanθ = 3.51

θ = tan^-1 3.51

θ = 74° North East