Objects experience acceleration due to gravity, even if their initial velocity is upwards. For example, if you were to toss a ball in the air, the ball experiences acceleration due to gravity during its entire motion. As the ball moves upwards it experiences acceleration downwards, slowing it down until it momentarily stops at its maximum height. Gravity continues to accelerate the object down, and its speed increases as it falls. Example 2: A tennis ball is tossed from your hand, 1.0 m above the ground, with a velocity of 3.6 m/s [up]. What is its maximum height above the ground? ends atin Another common misconception is that the object has a final velocity of zero as it hits the ground. If you were laying on the floor, and someone offered to drop a bowling ball on your chest, would you think that the bowling ball has a zero velocity as it strikes you? Example 3: What is the tennis ball's velocity right before it hits the ground? @Michelle Brosseau, Mrs. Brosseau's Binder