Spin a mass on a string in a vertical circle, what is the tension in the string when the mass is at the top for it to barely make it around? Spin a mass on a string in a vertical circle, how does the ...Spin a mass on a string in a vertical circle, what is the tension in the string when the mass is at the top for it to barely make it around? Spin a mass on a string in a vertical circle, how does the minimum speed at the top of the circle to barely make it around depend on the radius of the circle or the mass? Spin a mass on a string in a vertical circle, describe the motion if the mass does not have the minimum speed to make it around the circle.