A train has a mass of 5.22 ? 106 kg and is moving at 79.0 km/h. The engineer applies the brakes, resulting in a net backward force of 1.87 ? 106 N on the train. The brakes are held on for 29.0 s.
(a) What is the final speed of the train?
m/s
(b) How far does the train travel during this period?
m