An object of mass 100 kg falls from point A to B as shown in figure. The change in its weight, corrected to the nearest integer is ( R_E is the radius of the earth)

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Correct answer: A. 49 N

M g^ =M g R^2 (R+h)^2 At A M g^ =M g R^2 (R+2 R)^2 = M g 9 At B M g^ =M g R (R+ 3 R 2 )^2 = M g 4 25 Change in weight =M g 4 25 - M g 9 =49 ~N

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