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

+2.5 m/s and -2.5 m/s

Explanation:

There are two possibilities:

1) The velocity lies in the IV quadrant, with y being negative and x being positive. In this case, the magnitude of the horizontal component is

2) The velocity lies in the III quadrant, with y being negative and x being negative as well. In this case, the magnitude of the horizontal component is

option number c is the right answer.

conservation of mass

mass before something happens = mass afterwards