Mass particles of 1 kg each are placed a...

Mass particles of 1 kg each are placed along x-axus at `x=1, 2, 4, 8, .... oo`. Then gravitational force o a mass of 3 kg placed at origin is (G= universal gravitation constant) :-

`4G`

`(4G)/3`

`2G`

`oo`

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ALLEN -GRAVITATION-EXERCISE 1

Newton's law of gravitation :
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