1. The problem statement, all variables and given/known data One end of a cord is fixed and a small 0.310-kg object is attached to the other end, where it swings in a section of a vertical circle of radius 2.50 m as shown in the figure below. When θ = 28.0°, the speed of the object is 9.00 m/s. At this instant, find each of the following. (a) the tension in the string (b) the tangential and radial components of acceleration (c) the total acceleration 2. Relevant equations Hmm seems like you'd need a grasp of your basic trigonometry, and Newton's second law: ƩF = mg 3. The attempt at a solution Okay, well let's start with the tension. Tension is the force acting on the rope. And.... acting downward is the force of gravity, right? So would we begin by representing the dashed line as part of a triangle where the string is the hypotenuse. Then we'd use SohCahToa and set up the following equation: Sin (28.0) = (.310)(9.8)/T And then proceed to solve.