A 0.20-kg ball is twirled at the end of a string in a horizontal

circle with a radius of 0.60 m. The ball travels with a

constant speed of 4.0 m/s.

a. What is the magnitude of the vertical component of the

tension required to support the weight of the ball?

b. Draw to scale a vector diagram showing these two components

of the tension and estimate the magnitude of

the total tension from your diagram.