Practicing Success
Practicing Success
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The energy required to remove a body of mass m from earth’s surface is/are equal to |
$\frac{GMm}{R}$ mgR -mgR none of these |
mgR |
The potential energy of the body on the surface of each = U1 = $-\frac{GMm}{R}$. The potential energy of the body in the surface at infinity U2 = 0 $\Rightarrow \Delta U=U_2-U_1=\frac{GMm}{R}=mgR~~\left(∵ g=\frac{GMm}{R^2}\right)$ |
