# Question: an 043kg plastic ball with a diameter of 21 cm...

###### Question details

An 0.43-kg plastic ball with a diameter of 21 cm is dropped into seawater whose density is known to be 1023 kg/m3 . (The ball is assumed as a sphere)

(a) Find the buoyant force on the plastic ball if it were completely immersed in seawater.

(b) Will the plastic ball float? Explain your answer.

(c) Find the fraction of the ball’s volume below the seawater surface?

(d) Find the maximum radius of 0.43-kg plastic ball so that it sinks?