3. Vectors

Trig Review

Multiple Choice

Multiple ChoiceThe vector A represented is by the pair of components A_{x} = -77 cm, A_{y} = 36 cm. **(a)** Find the magnitude of vector A. **(b)** Find the absolute angle of this vector.

A

A = 68 cm @ 179.6°

B

A = 85 cm @ 179.6°

C

A = 68 cm @ −0.44°

D

A = 85 cm @ −0.44°

E

A = 68 cm @ 154.9°

F

A = 85 cm @ 154.9°

G

A = 68 cm @ −25.1°

H

A = 85 cm @ −25.1°

447

5

### Watch next

Master **Doing Math with Vectors in any Quadrant (More Trig)** with a bite sized video explanation from Patrick Ford

Related Videos

Related Practice

Showing 1 of 7 videos