Eind the magnitude and dicetton angle of v: 7(cos140 "it sin 140°;)

Question

Question

Answer 1

Answer #1

Given vector is, v = 7( cos140°i + sin140°j )

Compare this vector with polar form,which is, v = r(cos $\Theta$ i+ sin $\Theta$ j)

Where, r is magnitude of vector, and $\Theta$ is direction angle of vector.

Hence, Magnitude of v, |v| = 7 Direction angle = 140°

Answer 2

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