1. Which of the following most appropriately describes the centripetal force for an object of mass m, speed v, and radius r?

		The centripetal force is the product of m squared and v and is inversely proportional to r.
		The centripetal force is the product of m and v squared and is inversely proportional to r.
		The centripetal force is the product of m squared and v and is proportional to r.
		The centripetal force is the product of m and v and is proportional to r squared.