Posted by ARJUN on Dec. 11, 2012, 2:53 p.m.
why the old ball swings more than a new ball in the mid air?
But how can Glane McGrawth(Australian fast bowler) make even a new ball in mid air?
ANS: due to difference in the smothness on two diffrent side of ball the speed of air is different therefore it swings in mid air. Glenn McGrwath grip the ball such that the fingers are beside the seam to make weight in different side unbalanced to make a net torque on it and ball swings in mid air due to applied additional torque.