Question

If the radius of the earth reduced by half of the value of the present radius and mass remains same, the acceleration due to gravity

Answer 1

Explanation:

we know that.

g=Gm/R².....(1)

R'=R/2

putting the value in equation (1)

g'=Gm/R'

=)g'=Gm/(R/2)²

=)g'=4(Gm/R²)

=)g'=4g=4×9.8 or 4×10= 39.2 m s-² or 40m s-²

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