A tetherball weighing 1 lb is pulled outward from the pole by a horizontal force u until the rope makes an angle of theta degrees with the pole
1. Determine the resulting tension in the rope and magnitude of u when theta = 30 degrees
2. Write the tension T in the rope and the magnitude of u as functions of theta
3. Determine the domains of the functions
4. Compare T and ||u|| as theta increases
I know that ||u|| = sqrt a^2+b^2 but I just don't know what the values of a and b are.
Thanks in advance!!!