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What is the amount of work done in bring...

What is the amount of work done in bringing a mass from the surface of Earth on one side to a point diametrically opposite on the other side?

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If the starting point of fly which is one corner of room is taken as origin of coordinates, then the coordinates of diametrically opposite corner of room are (3, 4, 5). So’ displacement is `vecr=3hati+4hatj+5hatk and r=sqrt(3^(2)+4^(2)+5^(2))=sqrt50=7m`
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