Arock that had been dropped from a high platform is moving with a kinetic energy of 180 j when it strikes the ground. ignore air resistance. what kinetic energy did the rock have when it had fallen one-third of the distance to the ground?

This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.