Tension in the string

Question

Question: A 2.0 kg ball swings in a vertical circle on the end of 80cm long string. The tension in the string is 20 N if its angle from the maximum point on the circle is q = 300

a) Illustrate the ball's speed when q = 300?

v = ______ m/s

b) Describe the magnitude of the ball's acceleration when q = 300?

a = ____ m/s²

c) Illustrate the direction of the ball's acceleration when q = 300? Give the direction as an angle from the r-axis.

f =_____ 0