Hi! I'm thinking how would the velocity of a sphere change if it falls from rest in a tall beaker full of oil. I know that the direction of acceleration is upwards, and the acceleration should be decreasing at a decreasing rate. But how would the velocity change if the velocity is initially zero and falling downwards, meaning the acceleration has to slow it down. How does it slow down when the velocity is zero? And how can it be for the ball not to have velocity when it falls? Thanks.