Asked by ashong benjamin
The Weight of an object varies inversely as the square of its distance from the centre of the earth.the weight of a spacecraft is observed to be only a quater of its weight on earth.How far is the spacecraft from the surface of the earth?
[take radius of the earth to be 6400km ]
[take radius of the earth to be 6400km ]
Answers
Answered by
Steve
since the weight varies as 1/d^2, if its weight is 1/4 as much, d is twice as big.
That is, 1/(2d)^2 = 1/4 * 1/d^2
That is, 1/(2d)^2 = 1/4 * 1/d^2
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