1 - Newbury Park High School

Since angular momentum is conserved, if the moment of inertia decreases, then the angular speed must increase (L=Iw) If the ball is initially moving at 2.8 m/s in a circle with a radius of 0.30 m, what will be its tangential speed if the string is pulled down to reduce the radius of the circle to 0.15 m? (neglect the mass of the string) (5.6 m/s) ................
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