If something spin fast enough will it stay in motion or will it stop spinning when the energy used to spin is used up?

Answer 1

The energy that the object has when it's spinning is never "used up", unless

there's something acting on the object to rob energy from it. In our daily

experience on Earth, there's ALWAYS some friction acting on a spinning object.

The friction robs energy from it, and it eventually stops spinning. That's why

it's so hard for us to understand and accept Newton's law that tells us how

things REALLY work. An object in motion continues in motion unless it's acted

on by an external force. In other words, if something is moving, it doesn't take

any force or action to KEEP it moving. We just never see this happen on Earth,

because we can never set anything up WITHOUT any outside forces that act

to make it stop, so we always have to do something to keep it moving.

Answer 2

It will eventually stop spinning when the energy used to keep it spinning is depleted due to various factors such as friction and air resistance. However, the time it takes for it to stop spinning will depend on its initial speed, mass, shape, and the environment it's in.