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Q. A person will get more quantity of matter in $kg-wt$ at

J & K CETJ & K CET 2004

Solution:

The earth is not a solid sphere but is somewhat flattened at the poles and bulged at equator, its equitorial radius is $21\, km$ larger than its polar radius.
Since, $g=\frac{G M}{R^{2}}$
Hence, value of $g$ is least at equator and maximum at poles.
Also, $W = mg$, therefore a person will get more quantity of matter in $kg$-wt at equator.

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