Physics · 2021
JEE Main · 24 February 2021, Shift 2 · Q4
A body weighs 49 N on a spring balance at the north pole. What will be its weight recorded on the same weighing machine, if it is shifted to the…
A body weighs $\displaystyle 49$ N on a spring balance at the north pole. What will be its weight recorded on the same weighing machine, if it is shifted to the equator ?
[Use $\displaystyle g=\frac{\mathrm{GM}}{\mathrm{R}^2}=9.8 \mathrm{~ms}^{-2}$ and radius of earth, $\displaystyle \mathrm{R}=6400 \mathrm{~km}$.]
Official answer
(3)
48.$\displaystyle 83$ N
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