Why Gravitational Potential Energy is always positive???
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Because a negative amount of work is done to bring an object closer to the Earth, gravitational potential energy is always a negative number when using this reference point. A satellite of mass is launched from the surface of the Earth into an orbit of radius , where is the radius of the Earth.
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Because a negative amount of work is done to bring an object closer to the Earth, gravitational potential energy is always a negative number when using this reference point. A satellite of mass is launched from the surface of the Earth into an orbit of radius , where is the radius of the Earth.
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the gravitational potential energy near a planet is then negative since gravity does positive .
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