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Homework Help Forum: phyics-universal gravity

Posted by DJ on Tuesday, November 3, 2009 at 9:09pm.

Calculate the force of gravity on a spacecraft 6400 km (1 earth radii) above the Earth's surface if its mass is 1600 kg.

  • phyics-universal gravity - bobpursley, Tuesday, November 3, 2009 at 9:19pm

    G(Me*ms)/(2*radearth)^2

    or, since you know its mass, on earth the weight would be

    mg, but double the distance, and it is mg/4

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