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tngo1206
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Calc. Angle between radius vector point and positive x axis? What does that mean?
The cartesian coordinates of a point in the xy
plane are x = −8.96 m, y = −1.75 m.
Calculate the angle between the radius-
vector of the point and the positive x axis
(measured counterclockwise from the positive
x axis, within the limits of −180◦ to +180◦).
Answer in units of ◦.
arctan of (y/x) = angle/degree
I did arctan of y/x = 11.051 incorrect...
I did the arctan of y/x + 180 and got 191.05 incorrect...
I did that same method - 180 = 168 ish still inccorrect...
then I did arctan of x/y + 180= 258 ish and still wrong..
any ideas what this question is asking for? or what the correct answer is??
Homework Statement
The cartesian coordinates of a point in the xy
plane are x = −8.96 m, y = −1.75 m.
Calculate the angle between the radius-
vector of the point and the positive x axis
(measured counterclockwise from the positive
x axis, within the limits of −180◦ to +180◦).
Answer in units of ◦.
Homework Equations
arctan of (y/x) = angle/degree
The Attempt at a Solution
I did arctan of y/x = 11.051 incorrect...
I did the arctan of y/x + 180 and got 191.05 incorrect...
I did that same method - 180 = 168 ish still inccorrect...
then I did arctan of x/y + 180= 258 ish and still wrong..
any ideas what this question is asking for? or what the correct answer is??