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In a gravitational field, the gravitational potential is given by, $V=-\frac{K}{x}$ (J/kg). The gravitational field intensity at point (2, 0, 3) m is:
Detailed Solution
$E_g=-\frac{dV}{dx}=-\frac{d}{dx}\left(-\frac{K}{x}\right)=-\frac{K}{x^2}$. At $x=2$: $E_g=-\frac{K}{(2)^2}=-\frac{K}{4}$.