In a 2-dimensional Cartesian system, the y component of a vector is known, and the angle between vector and x axis is known. Which operation is used to calculate the magnitude of the vector (taken with respect to the y component)?
A) dividing by cosine
B) dividing by sine
C) multiplying by cosine
D) multiplying by sine

Question

Quizplus · Accepted Answer

To find the magnitude of the vector using the y component and the angle with the x-axis, divide the y component by the sine of the angle.

In a 2-Dimensional Cartesian System, the Y Component of a Vector