Find an expression for the moment of iner.ia, INocyp: of he rotary motion sensor itself, the attached pulley, and the bar (winout the cy.indrical masses) by setting the initial potential energy of the hanging mass, mg, equal to the final kinetic energy of the system just at the instant before the hanging ass hits the floor. Remember that the tinear speed of the string, , is related to the angular speed of the pulley, c (in radians per second), by the relation v - OR where R is the radius of the pulley. Show that your expression is equivalent to: 2gh IN(= MR' - I (9.5) NoCyl