Q13 of 46 Page 247

If the density of the earth is doubled to that of its original value, the radius remaining the same, what will be the change in acceleration due to gravity?


Where G is the universal gravitational constant (= 6.67 × 10-11 Nm2kg-2),


M is the mass of the earth,


R is the radius of the earth.


If the density is doubled, the mass gets doubled. So



=


= 2g


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