barryj Messages 856 Reaction score 51 Thread starter Apr 8, 2016 #1 When a football is first thrown it is usually tip up but during the trajectory, the ball tends to rotate where the tip is pointing down. Why does this occur?
When a football is first thrown it is usually tip up but during the trajectory, the ball tends to rotate where the tip is pointing down. Why does this occur?
Bystander Science Advisor Homework Helper Gold Member Messages 5,628 Reaction score 1,777 Apr 8, 2016 #2 Google "ballistics"+"tractability."