Question: A 5.13 kg ball hangs from the top of a vertical pole by a 2.15 -m-long string. The ball is struck causing it to revolve around the pole at a speed of 4.05m/s in a horizontal circle with the string remaining the taut.
Part A: Calculate the angle between 0 and 90 degrees that the string makes with the pole.
I want help to find the angle between 0 and 90 degrees that the string makes with the pole and take g=9.81 m/s squared.