Question

The components of vector A are Ax = + 3.90 and Ay = -4.00. What is the angle measured counterclockwise from the +x-axis to vector A?

Answer 1

Answer:
`314.28^(\circ)`

Step-by-step explanation:

Given

X component of the vector is
`A_x=3.9`

Y component of the vector is
`A_y=-4`

From the figure, we can write

`\Rightarrow \tan x=(4)/(3.9)\\\\\Rightarrow x=45.72^(\circ)`

Thus, the angle measured counterclockwise from the x-axis to vector A is

`360^(\circ)-45.72^(\circ)=314.28^(\circ)`