Zero inertia and centripetal force/acceleration

[cookbeat01]

If an object did not have inertia, and a centripetal force acts on it, how fast would it go and what radius would it turn in? Also, could the object turn in the beginning/middle of a turn without slowing down? Also, can something without inertia turn while in the middle of changing direction and do the same thing many times?

[swansont]

Depends on how you're using the term inertia. An object at rest cannot feel a centripetal force. An object can turn without slowing down.