A 25 metric ton train moves toward the south at 70 m/s. At what speed must it travel to have a momentum of 7×10^5 kg m/s ?

Refer to your lab guide and review the data in table b to complete each statement. the mass of g1 + g2 after the collision kg. the velocity of g1 + g2 after the collision m/s. the momentum of the combined gliders after the collision kg · m/s.