At a time 0.2s after it has been hit by a tennis racket, a tennis ball is located at ⟨6, 8, 0⟩m, relative to an origin in one corner of a tennis court. At a time 0.55s after being hit, the ball is located at ⟨9, 2, 9⟩m.
a) What is the average velocity of the tennis ball?
v⃗avg=⟨ , , ⟩