Mon Prof Augmenté
Cue Ball Spin After Impact
Age 14 · Physics
Where the cue tip strikes the white cue ball changes how the ball spins. Hitting above center makes it roll forward after impact, while hitting below center makes it roll backward.
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In the picture
- Cue tip touching the upper half of the white cue ball
- White cue ball after impact, continuing forward past the red ball
- Cue tip touching the lower half of the white cue ball
- White cue ball after impact, moving backward toward the cue stick side
Examples
- A ping-pong ball with topspin jumps forward after it bounces.
- A basketball with backspin can bounce back toward the player.
Key takeaways
- Striking above center gives forward spin that carries the cue ball ahead after impact.
- Striking below center gives backward spin that pulls the cue ball back after impact.
Quiz: Cue Ball Spin After Impact (Age 14)
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After impact, what does the cue ball do if the cue tip strikes above its center?
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After impact, what does the cue ball do if the cue tip strikes below its center?
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Where should the cue tip strike the cue ball to make it roll forward after impact?
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