A tetherball leans against the smooth, frictionless post to which it is attached. (See the figure) The string is attached to the ball such that a line along the string passes through the center of the ball. The string is 1.30 long and the ball has a radius of 0.150 with mass 0.410
a. What is the tension in the rope?
b. What is the force the pole exerts on the ball?