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Which of the following has kinetic energy?
O a compressed spring
O a stretched spring
O a spring traveling down a flight of stairs
O a spring still at the top of a flight of stairs



Sagot :

It would be a spring traveling down a flight of stairs because it is moving. A compressed spring is not moving, a stretched spring is not moving and a spring at the top of a flight of stairs is that moving. Therefore it would be 3: a spring traveling down a flight of stairs. Kinetic Energy means energy of motion so it needs to be moving