1. The problem statement, all variables and given/known data A mass of 100g is attached to a string of length 1m.The system experiences vertical circular motion. (1)What is the minimum velocity to be given to the object at the lowest point of the path, in order to continue vertical circular motion? (2)What is the maximum tension in the string? (3)What is the tension in the string when the string makes an angle of 60 degrees with the vertical? 2. Relevant equations F=ma and equations of motion maybe 3. The attempt at a solution I have done problems on conical pendulums,but never on vertical circular motion,so I'm not sure how I'm supposed to find the answer to (1) Anyway at the lowest point,I know T = mg + mv2/r And I can find v,if I knew the tension T ?but anyway this v is only the centripetal velocity,right? Not sure if knowing v would even help me find the minimum velocity(u) at the lowest point? Hope my problems clear THANK YOU.