contestada

Instructions: On occasion, the notation = [A, θ] will be a shorthand notation for .The vector has components +5 and +7 along the x and y axes respectively. The vector is rotated 90 degrees counterclockwise relative to the original axes, the vector's components areSelect one:a.−7; −5.b.−5;-7.c.−7; 5.d.7; 5.e.7; 0.

Respuesta :

ANSWER

[tex]c)(-7,5)[/tex]

EXPLANATION

We want to find the coordinates of the vector after the rotation.

For 90 degrees counter-clockwise rotation, the rotation rule is:

[tex](x,y)\to(-y,x)[/tex]

Therefore, for the given vector:

[tex](5,7)[/tex]

it becomes:

[tex](-7,5)[/tex]

The answer is option C.

Otras preguntas