ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2013 Question 2

Question 2

A body weighs 98N on a spring balance on the north pole. The same body is shifted to the equator, the weight of the body at the equator on the same scale is: (Assume g = 9.8 m/sec$$^2$$ and radius of the earth = 6400 km)

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