From the edge of a cliff, a 0.46 kg projectile is launched with an initial kinetic energy of 1430 j. the projectile's maximum upward displacement from the launch point is +150 m. what are the (a) horizontal and (b) vertical components of its launch velocity? (c) at the instant the vertical component of its velocity is 65 m/s, what is its vertical displacement from the launch point? take up to be the positive direction.