The
first axis is vertical pointing towards sky.
A
ball that spins about vertical axis will deflect in air to left or right and
there is no deflection when it bounces
The
second axis points along the pitch towards the batsman when cricket ball spins
or about this axis.
It
does not deflect in air, but deflects sharply towards left or right after the
bounce.
By
dropping the spinning ball vertically we can notice this change.
The
third axis is across or perpendicular to pitch. Spinning the ball about third
axis results in top spin or back spin.
A Top spin ball dives towards
the pitch faster and bounces at reduced angle since it kicks forward when it
bounces.
A back spin ball kicks up after
it bounces, causing the ball to slow down. The actual result depends on both
the amount of spin and angle of incidence.
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