A spaceship of mass 2.10×10^6 kg is cruising at a speed of 6.00×10^6 m/s when the antimatter reactor fails, blowing the ship intothree pieces. One section, having a mass of 4.80×10^5 kg, is blown s

A spaceship of mass 2.10×10^6 kg is cruising at a speed of 6.00×10^6 m/s when the antimatter reactor fails, blowing the ship intothree pieces. One section, having a mass of 4.80×10^5 kg, is blown straight backward with a speed of2.30×10^6 m/s. A second piece, with mass 8.20×10^5 kg, continues forward at 9.00×10^5 m/s.

What is the speed of the third piece in m/s?