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

question 3

Multiple Choice

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

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Definitions:

Reddish Streak

The color mark left by a mineral when it is dragged across an unglazed porcelain plate.

Hematite

An iron oxide mineral that is one of the main ores of iron, recognized by its reddish-brown color.

Magnetite

A naturally occurring magnetic mineral, consisting of iron oxide, often mined as an iron ore.

Perpendicular Directions

This refers to two lines or directions that intersect at a 90-degree angle.