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  • Assuming the earth to be a sphere of uniform mass density, the weight of a body at a depth   from the surfa

Assuming the earth to be a sphere of uniform mass density, the weight of a body at a depth d=\tfrac{R}{2}  from the surface of earth, if its weight on the surface of earth is 200 N, will be :

Option: 1

500N


Option: 2

400N


Option: 3

100N


Option: 4

300N


Answers (1)

mg = 200N
g^{\prime}=g\left(1-\frac{\mathrm{d}}{\mathrm{R}}\right)=g\left(1-\frac{\mathrm{R}}{2 \times \mathrm{R}}\right)=\frac{g}{2}
weight = mg'= \frac{mg}{2}=\frac{200}{2}=100N

Posted by

Ramraj Saini

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