Physics question

A ball swings counterclockwise in a vertical circle at the end of a rope 1.59 m long. When the ball is 37.30 past the lowest point on its way up, its total acceleration is (—16.57 + 21.6j) m/s . For that instant, do the following.
 
(a) Sketch a vector diagram showing the components of its acceleration. Choose File No file chosen  This answer has not been graded yet.
(b) Determine the magnitude of its radial acceleration.
m/s2
(c) Determine the velocity of the ball.
m/s
magnitude
direction
0 counterclockwise from the +7 direction

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