Question

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.

Answer 1

`c)(-7,5)`

Step-by-step explanation

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

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

`(x,y)\to(-y,x)`

Therefore, for the given vector:

`(5,7)`

it becomes:

`(-7,5)`

The answer is option C.