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ans 9: the length from the centre of the earth surface is 6400 km therefore the subsequent the weight of the weight of man on surface of earth let be x so to reach its has made the man has to go half into the earth that is 3200 km full stop also it is due to the fact that as we reach the centre of the earth the subsequent to it is zero so to reach behalf rate it has to be Halfway from the Earth surface
ans 10 :similarly to get the half weight again we need to assume upon the fact that as we go above the earth the weight of men decreases as we go Halfway about the earth that is at 26 50 km will reach half way to get half weight of the man
ans 10 :similarly to get the half weight again we need to assume upon the fact that as we go above the earth the weight of men decreases as we go Halfway about the earth that is at 26 50 km will reach half way to get half weight of the man
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