translationKE=1/2 m v^2 change m to kg, v to m/s
rotational KE=(w^2*r= 2/5 M r^2*(2pi*1250/60)^2
total: add them
decimal percent: rotatioal/total
A pitcher can throw a ball towards the home plate at 120km per hour. When thrown, the ball curves. The curveball has a spin of 1250rpm. The ball has a mass of 100g and a radius of 2.5cm
Calculate the percentage of total KE that is in rotational KE
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