A 1-kilogram mass is dropped from a height of 1 meter. Its kinetic energy just before it hits the ground is

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Gravitational potential energy is converted to kinetic energy. The kinetic energy is equal to the mass of the object times the force of gravity times the height. Thus,mgh =1 kilogram x 9.8 meters/second x 1 meter = (approximately) 10 joules.

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