cc asked in Science & MathematicsPhysics · 1 decade ago

satellite is in a circular orbit above Earth's surface. Why is the work done by the gravitational force zero? ?

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  • 1 decade ago
    Favorite Answer

    because the force is at right angles to the motion.

    .

  • 1 decade ago

    Because work done is F*d. Here, the force is always perpendicular to the rotation. This means that the distance never changes. The satellite always remains the same distance from the center of the earth -- which is where the gravitational force radiates from. The work done is zero.

  • Anonymous
    1 decade ago

    The two cancel each other and then the satellite escapes.

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