Solve the all parts of following problem:
Problem: You swing an object in a vertical circle of radius 0.860m.
Part A: What is the mass of the object if it is known that when the speed of the object at the top of the circle is 3.35m/s the tension in the rope is 4.90N?
kg
Part B: What is the tension in the rope when the object at the bottom of the circle has a speed of 6.95 m/s?
N
I need help to find the tension in the rope when the object at the bottom of the circle.