Question

If v =5.00 meters/second and makes an angle of 60 with the negative direction of the y-axis coalculate the possible values of vx

Answer 1

An angle of 60 degrees with the negative y-axis could mean 60 degrees clockwise or counterclockwise, which translates to two possible angles (starting from the positive x-axis and moving counterclockwise) of 210 degrees or 330 degrees.

Then the horizontal component
`v_x` of a velocity vector
`\mathbf v` with magnitude
`5.00\,(\mathrm m)/(\mathrm s)` could be one of two expressions:

`v_x=\left(5.00\,(\mathrm m)/(\mathrm s)\right)\cos210^\circ=-4.33\,(\mathrm m)/(\mathrm s)`

`v_x=\left(5.00\,(\mathrm m)/(\mathrm s)\right)\cos330^\circ=4.33\,(\mathrm m)/(\mathrm s)`