A 4,000 kg elephant is riding a bicycle at a speed of 4.0 m/s. Out of nowhere, a zebra runs out in the elephant's path and he must slam on his brakes. If the bicycle's brakes exert a force of -1400
N, how much distance is required for the bike to slow down to 1 m/s? Use the work-KE Thm.

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.