if a man weights 60kg on earth surface, how far must he go from the centre of earth so that his weight become 30kg ?(R=6400km)
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half the way away from the place just divide it by 2
honey200592:
post me answer
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Answer weight of a body varies inversely as the square of the distance from the centre of the earth.
W2/W1=R1²/R2²
30/60=R1²/R2²
1/√2=R1/R2
R2=√2R1
R2=√2×6.4 ×10 to the power 6 metre
R2=9.05×10 to the power six.
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