The x-component of vector R is Rx = −23.2 units and its y-component is Ry = 21.4 units. What is its direction? Give the direction as an angle measured counterclockwise from the +x-direction.

Answer :

Explanation:

Given that,

The x component of the vector R, [tex]R_x=-23.2\ units[/tex]

The y component of the vector R, [tex]R_y=21.4\ units[/tex]              

We need to find the direction of the vector R. Let [tex]\theta[/tex] shows te direction of R such that,

[tex]tan\theta=\dfrac{R_y}{R_x}[/tex]

[tex]tan\theta=\dfrac{-21.4}{23.2}[/tex]        

[tex]\theta=-42.67^{\circ}[/tex]                        

Here, minus sign shows that [tex]\theta[/tex] is taken in clockwise direction.

For anticlockwise direction, [tex]\theta=180-42.67=137.33^{\circ}[/tex]

So, the vector R makes an angle of [tex]137.33^{\circ}[/tex] with x direction. Hence, this is the required solution.                                                    

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