Find the angle theata for a vector

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SUMMARY

The discussion focuses on calculating the angle theta for a vector with components ax = 3.40 m and ay = -0.700 m. The correct approach involves using the equation ay/ax = tan(theta). The user initially calculated tan(theta) as -11.6, which is incorrect. The correct angle, measured counterclockwise from the +x-axis, is found to be 348.4 degrees, confirming that the angle can be expressed in multiple equivalent forms.

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Homework Statement


Let angle theta be angle vector A which makes with the + x-axis measured counterclockwise from that axis. Find the angle theata for a vector that has the following components. ax=3.40 m. ay= -.700 m.


Homework Equations


ay/ax=tan theta.


The Attempt at a Solution



-7/3.4 =tan theta. I got -11.6 which is wrong.
 
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That should be correct. Try 360-11.6 = 348.4, which is really equivalent but that my be what they are looking for.
 
measured counterclockwise from that axis

anap40 has given you the desired result and why it is so.
 

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