In ball sports, topspin or overspin is a property of a ball that rotates forwards as it is moving. Topspin on a ball propelled through the air imparts a downward force that causes the ball to drop, due to its interaction with the air (see Magnus effect). Topspin is the opposite of backspin.[1]
- ^ Stockton, Nick. "The Mind-Bending Physics of a Tennis Ball's Spin". Wired. ISSN 1059-1028. Retrieved 2023-10-05.