Ball Not Swinging
Here is an easy answer.
ALSO, make sure the ball is shiny on one side.
Reverse Swing
Hello shoaibakhtr, If a player can bowl above 85mph – or if the ball has aged – this makes it possible for the bowler to “reverse swing” the ball. In simple terms this is exactly what happens – a delivery that is expected to swing away from the batter (an outswinger), instead swings in towards them (an inswinger) – and vice versa. This happens when the seam is angled for conventional swing but this time the rough side faces the batsman. If the ball is bowled fast enough (above 85 mph), the laminar layer goes into a turbulent state before it reaches the seam. The seam actually has a negative effect here and affects the turbulent layer so it separates earlier compared with the bottom surface. Like in conventional swing, there is a lateral force created because of the pressure difference but this time the lateral force acts in the opposite (reversed) direction. As mentioned, there is a critical speed to h
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