A simple Atwood's machine uses two masses, m1 and m2. Starting from rest, the speed of the two masses is 5.0 m/s at the end of 2.0 s. At that instant, the kinetic energy of the system is 100 J and each mass has moved a distance of 5.0 m. Determine the values of m1 and m2. m1 = kg m2 = kg