The 12-Mg "jump jet" is capable of taking off vertically from the deck of a ship...

The 12-Mg "jump jet" is capable of taking off vertically from the deck of a ship. If its jets exert a constant vertical force of 150 kN on the plane, determine its velocity and how high it goes in t = 6 s, starting from rest. Neglect the loss of fuel during the lift.