(Solved): 1) A rock attached to a string swings in a vertical circle, as shown below, with negligible air res ...

1) A rock attached to a string swings in a vertical circle, as shown below, with negligible air resistance. The rock is swung in such a way that it is kept at a constant speed. On the grid below, draw and label force diagrams for the rock when the string is at each of the positions shown. Assume that the rock travels at sufficient speed so that the tension in the string is always a nonzero value.