The kinetic energy of a moving mass, the gravitational potential energy of a stretched spring, and the gravitational potential energy of mass raised a distance above some zero height. KE = U = }kx? U = mgh y. Yo: V1, me, and m; , the same as before. Choose the zero gravitational potential energy for each mass to be at the position it is at when the spring is unstretched(when y=0) 2mg y = k 2m,g %3! k • - ky ky,-m;g a Given these equations, write an expression for the total potential energy of the system when the spring is stretched an amount y.

The kinetic energy of a moving mass, the gravitational potential energy of a stretched spring, and the gravitational potential energy of mass raised a distance above some zero height. KE = U = }kx? U = mgh y. Yo: V1, me, and m; , the same as before. Choose the zero gravitational potential energy for each mass to be at the position it is at when the spring is unstretched(when y=0) 2mg y = k 2m,g %3! k • - ky ky,-m;g a Given these equations, write an expression for the total potential energy of the system when the spring is stretched an amount y.