You have posted a number of questions, without your thinking. We don't do homework or tests for you.
It does appear you are answer grazing.
A weight attached to a wire is swung in a circular path. Its speed is 12 meters/sec, and it has a centripetal acceleration of 9.0 meters/sec2. Calculate the diameter of the circle.
1.3 meters
2.6 meters
16 meters
32 meters
1 answer