A metal disk explodes into 3 fragments, which fly off in the same geometric plane. The first piece has a mass of 2.40 kg and it flies off at 10.0 m/s [N 25.0 E]. The second piece has a mass of 2.00 kg and it flies off at 12.5 m/s [E 35.0 S]. What is the speed and direction of the third piece which has a mass of 1.45 kg? (6 marks)