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  4. When a satellite going around the earth in a circular orbit of radius r and speed v loses some of its energy , then

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Q. When a satellite going around the earth in a circular orbit of radius r and speed v loses some of its energy , then

COMEDKCOMEDK 2000Gravitation

Solution:

When a satellite loses energy, it means it loses some of its potential energy. This happens when the radius of the orbit decreases. Since the total energy of the satellite is constant, as potential energy decreases its kinetic energy increases, that is its speed increases.