8. A 10.0 kg block rests on a frictionless surface and is attached to a vertical peg by a rope. a. What is the tension in the rope if the block is whirling in a horizontal circle of radius 2.00 m with a linear speed of 20 m/s? b. Calculate the period of the motion. c. Calculate the frequency. d. If the same 10 kg block were whirled in a vertical circle at the same constant speed of 20 m/s. i. Calculate the tension in the rope at the top of the circle, li. Calculate the tension in the rope at the bottom of the circle