the mass of body A is double the mass of another ball B The ball a moves at the half speed of the ball b .calculate the ratio of the kinetic energy of a to the kinetic energy of B
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The kinetic energy is proportional to the mass, but it is relative, and the mass increase may affect the distribution of energy between the body and the body with the Observer. We too often assume that, since we frequently think of the speed of small bodies relative to the Earth, the moving body is the only one moving. The Moon does not orbit the Earth, but a point about 4,000 miles from the Earth's surface, and the Moon and the Earth have the same angular momentum!
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