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13. Rotational Inertia & Energy / Conservation of Energy in Rolling Motion / Problem 12
Problem 12
A solid disk with a diameter of 12 cm and mass of 6.0 × 102 g starts from rest at the top of an inclined plane that has a length of 4.0 m along the incline and an angle of 35° with the horizontal. Calculate its angular speed when it rolls down to the base. Assume that it rolls without slipping.