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On the ground the gravitional force on a satelite is W . whar iw the gravitational force on the satelite when at a height R/50? |
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Answer» vitational force between TWO OBJECTS due to their masses isF=Gm1m2r2 whereF= force in newtonsm1= mass of first object in kilogramsm2= mass of SECOND object in kilogramsr= distance between centres of the objects in metresG= the "gravitational constant", APPROXIMATELY equal to 6.674×10−11Nkg−2m2 This idea was first formulated by Isaac Newton, and published by him in 1686.In this problem, let m1=mE= mass of the earth; let m2=mS= mass of the satellite.On the ground:W=GmEmSR2 , where R is the radius of the earth.In orbit:F=GmEmS(R+R50)2=GmEmS(51R50)2 where F is the force we're looking for.Put the two together:F(51R50)2=WR2 F(5150)2=W F=25002601W |
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