I hope it's not too late, but here you go
Answer:
Explanation:
According to the law of the conservation of energy, the gravitational potential energy of the physical system will be converted into rotational kinetic energy. So, we have:
Is the moment of inertia of the system, that is the sum of the moments of inertia of the disk and the small object.
a) many people think that no energy or matter exists outside the universe.
An isolated system is defined as a system that does not interact with its surroundings. This is the reason that its total energy and mass remains constant. Moreover, t<span>otal</span><span> momentum in a system is conserved for collisions occurring in </span><span>isolated systems.</span>
