2. A stunt artist hanging from a balcony, drops 5 kg and lands in the middle of a loaf of sand in a truck travelling uniformly at 8 m. s-1 on the street below. State the law momentum Explain by referring to the principal of conservation of momentum, why the speed of the truck is reduced when the artist lands on it.

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.

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The answer is 12, for the points