Understanding the Data
Appendix
Ball Data
QED USER MANUAL 33
Ball Speed
Measurement of the golf ball’s velocity measured just after
impact with the club face
Side Spin
Measurement of horizontal spin on the golf ball that causes
your golf ball to slice or draw
Back Spin
Measurement of reverse rotation of the golf ball in relation
to the ball’s trajectory (Backspin generates an upward force
that lifts the ball)
Cont.
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