In lacrosse, a typical throw is made by rotating the stick through an angle of
approximately
90o, then releasing the ball when the stick is vertical,
as shown below. If the stick is at rest when horizontal, the length of the
stick is 1 meter, and the ball leaves the stick with a velocity of 10 m/s, what
angular acceleration must the stick experience?
Figure P.1: The lacrosse stick is accelerated through an angle of 90o. At
point A, the stick is at rest. At point B, the ball is released.