A 0.5 kg puck is hanging (at rest) by a 1.5 m string. It is then kicked giving it a speed of 9.0 m/s and causing the puck to travel around a vertical circle. (A) (6 pts) Calculate the speed of the puck when it reaches the top of the circle. You may use an energy bar chart to answer this question. (B) (6 pts) Calculate the tension acting on it when it reaches its highest point. (C) (4 pts) What minimum speed must the puck have at the top in order for it to follow a circular trajectory