Recent content by annamarie424

  1. A

    How do you find centripetal force without knowing velocity?

    Homework Statement A tetherball goes around the pole at a constant velocity. The rope has a 2m length, makes a 30 degree angle below the horizon and the ball's mass is .5 kg. Homework Equations F(gravity)=m*a F(centripetal)=mv^2/r The Attempt at a Solution I'm stuck at trying to...