Seeing a curved flight path of a ball

Hi Alois and Jeff.   When a ball is coming towards you - with medium speed and medium spin (SideSpin or TopSpin)  can you always see a curved flight path of that ball.   In what cases can you usually ALWAYS see a curved flight path of a spinning ball coming towards you.   In what cases can you usually NOT see a curved flight path of a spinning ball coming towards you.   Best regards Michael

Hi Michael,

If the ball is travelling slower with a lot of spin then the ball will curve or dip more.

If the ball is faster even if it has spin, sometimes it will not curve much because the speed through the air takes over and doesn't allow the ball to curve.