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Home Q & A Board Science-Related Homework Help Physics
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irina irina
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11 years ago
How do i find the magnitude and direction of a satellite when i am given mass, speed and the distance from the centre of the earth?
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juliax3rosejuliax3rose
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11 years ago
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11 years ago
You are talking about centripetal force, force dirceted towards the centre of a circle in a circular motion.

The direction of the force of the satellite will be towards the centre of Earth. To find the force, use

F = m X v^2 / r
where m is the mass of the satellite in kg,
v is the velocity in m/s,
r is the distance from the centre of the earth.  

Note that v^2 / r  is known as the centripetal acceleration.
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