A projectile of mass 4.7 kg is launched horizontally from an initial height 1.7 m with an initial velocity 8.6 m/s. This velocity in the x direction is preserved when you ignore air resistance. The projectile still accelerates in the vertical y direction toward the ground, but this is exactly the energy lost from potential energy. Energy is conserved as long as you use the total mechanical energy equation. What is the total final kinetic energy (Joules) as the projectile just reaches the ground? Give your numerical answer to one decimal place precision. Assume g= 9.8 m/s.