A uranium atom (U) travelling with a velocity of 5.0 x 10 ms¹ relative to the containing tube, breaks up into krypton (K,) and barium (B₂). The krypton atom is ejected directly backwards at a velocity of 2.35 x 10°ms¹ relative to the barium after separation. With what velocity does the barium atom move forward relative to the tube? (You may assume that no other particles are produced and that relativistic corrections are small. What is the velocity of the krypton atom relative to the containing tube? (K,= 95.0, B₂ = 140, U = 235u)​