A ball swings in a vertical circle at the end of a rope 1.50 m long. When the ball is 36.9° past the lowest point on its way up, its total acceleration is (-22.5 ihatbold + 20.2 jhatbold) m/s2. For that instant, do the following.
(a) Sketch a vector diagram showing the components of its acceleration. (Do this on paper. Your instructor may ask you to turn in the sketch.)
(b) Determine the magnitude of its radial acceleration.
(c) Determine the speed of the ball.
Determine the velocity of the ball.