A disk rolls down a slope. It rotational axis is its center of mass. It is rotation at a constant angular speed making 34.0 full revolutions in a time interval of 3.30 s.

1)What is the rotational inertia of the disk if its mass is 11.7 kg, and its radius is 49.6 cm?

2) What is the rotational kinetic energy K of the rotating wheel?

3)What is the translational kinetic energy of the rolling disk?

4)What is the total kinetic energy of the rolling disk?

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