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, 20.2> m/s2, where these are respectively the horizontal and vertical components of the acceleration. At that instant,
(a) sketch a vector diagram showing the components of its acceleration?
(b) determine the magnitude of it's radial acceleration?
(c) determine the speed and velocity of the ball?