Suppose a hollow sphere is on an incline with an angle of inclination of 25.0. The hollow sphere begins to roll down the

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Suppose a hollow sphere is on an incline with an angle of
inclination of 25.0. The hollow sphere begins to roll down the
ramp. Neglect air resistance and suppose the height of the center
of mass has decreased by 3.50 meters. Suppose the hollow sphere has
a mass of 2.00 kg and a radius of .0550 meters. A. By what amount
does the potential energy of the hollow sphere change as its center
of mass descends 3.50 meters? B. Assuming the sphere has started
from rest, what’s id the kinetic energy after its center of mass
has descended by 3.50 meters? C. What is the speed after the center
of the mass of the disk has descended by 3.50 meters?