I had to do an experiment where you manipulate and change different variables (mass providing centripetal force, radius etc.) and then further invesigate the effects on centripetal force that these changes had. My problem is that it says that by keeping the mass providing the centripetal force constant, the centripetal force remains constant... so what would that force be if the providing mass was 250g. Ive been reading and from what ive seen it would be 2.5N but it still doesn't make sense!!! Can someone please explain!!! Also.... What would be the relationship between the variables i mentioned???