**Definition**

The process of splitting a vector into various parts or components is called resolution of vector.

These parts of a vector may act in different directions and are called “components of vector”.

We can resolve a vector into a number of components. Generally there are three components of vector viz.

- Component along X-axis called x-component
- Component along Y-axis called Y-component
- Component along Z-axis called Z-component

Here we will discuss only two components x-component & Y-component which are perpendicular to each other. These components are called rectangular components of vector.

Consider a vector acting at a point making an angle q with positive X-axis. Vector

is represented by a line OA. From point A draw a perpendicular AB on X-axis. Suppose OB and BA

represents two vectors. Vector OA is parallel to X-axis and vector BA is parallel to Y-axis. Magnitude

of these vectors are Vx and Vy respectively. By the method of head to tail we notice that the sum of these vectors is equal to vector

Thus, Vx and Vy are the rectangular components of vector

**Magnitude of horizontal component**

Consider right-angled triangle DOAB

**Magnitude of vertical component**

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