Lesson 1, Topic 4
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# Components of a Vector

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### Topic Content:

• Components of a Vector

A vector, F, generally has two components, namely the vertical component of a vector Fy, and the horizontal component of a vector, Fx.

F = (Fx, Fy)

The component of a vector is the effective value of the vector in a particular direction.

The horizontal component of a vector F is the effective value of the vector in the horizontal direction (Fx)

Use  SOH CAH TOA to calculate the horizontal component Fx

Fx = Adjacent, F = Hypotenuse, Therefore, we use CAH

Cos θ = $$\frac{Adj}{Hyp}$$

Cos θ = $$\frac{F_x}{F}$$

Fx = F Cos θ

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