Compute all parts of following problem:
Problem: Eve twirls a .3kg stone attached to a string 2m long in a horizontal circle.
Part A: At what speed must the stone move for its centripetal force to equal gravity?
Part B: How long does it take the stone to travel around once?
Part C: What is the stones frequency?
Part D: What is the tension in the string?
I need help to find at what speed the stone move for its centripetal force to equal gravity.