Question

In the Library-Research Projects
The 'swing' of a cricket ball is caused by the principle given by
Bernoulli. Find out how.
Bowlers often rub one half of the ball to make it shiny, and
leave the other half rough. Find out how this increases the
swing. Use the picture given alongside to help you. Find out
how bowlers bowl inswing and outswing.
​

Answer 1

The players only rub one side of the ball, while keeping the other side rough. This causes more air resistance on the rough side of the ball which makes the ball swing in the air. When the ball is clean on one side of the seam and rough on the other the bowlers are able to get reverse swing

The two main forms of swing are inswing, where the ball begins wider of the batsman and travels into the batsman's body, angling towards the stumps, and outswing, where the ball begins in line with the stumps but moves so that it is slightly wider of the stumps by the time it reaches the batsman. ✌