A 1-kg pellet travels with velocity 280 m/s to the right when it collides with a 39-kg hanging mass which is initially at rest. After the collision, the pellet remains lodged in the hanging mass, i.e., it is a completely inelastic collision. The hanging mass (+pellet) then swings upward and reaches a maximum height hmax before swinging downward again. Assume that no external forces are present and therefore the momentum of the system is conserved. Solve for final velocity, final kinetic energy, and maximum height in centimeters. Thus far, I've figured out the final velocity using the formula p(initial)=p(final), where p=mv. I've also solved for the final velocity using k(final)=.5*m*v^2. v(final)=7 m/s k(final)=980j But I'm stumped on what equation to use to solve for the max height.