A simple Atwood's machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 4.8 m/s at the end of 5.5 s. At that time, the kinetic energy of the system is 33 J and each mass has moved a distance of 13.2 m.
1. Find the value of heavier mass. The acceleration due to gravity is 9.81 m/s^2. Answer in units of kg
2. Find the vale of lighter mass. Answer in units of kg