a An Atwood machine consists of two masses hanging from the 1 ends of a rope that passes over a pulley. The masses have the i values m1 = 21:0 kg and m2 2 13.0 kg. Assume that the rope : and pulley are mas-slless and that there is no friction in 2 the pulley. D What is the magnitude of the masses\" acceleration a? Incorrect What is the magnitude of the tension T in the rope