Question
The diagram showing the variation of gravitational potential of earth with distance from the centre of earth is
Step 1
Gravitational potential is the potential energy per unit mass due to the gravitational force exerted by a massive object (in this case, Earth). Show more…
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The gravitational potential at the surface of earth is $-V_{w^{\prime}}$ The mass of the earth is $M$ and its radius is $R$. The gravitational potential at the centre of earth must be (a) Zero (b) $\frac{-3 V_{n}}{2}$ $(\mathrm{c})-\left(V_{n}+\frac{G M}{2 R}\right)$ (d) $\left(-V_{s}+\frac{G M}{2 R}\right)$
Gravitation
Section B
Which diagram best represents the gravitational forces, $F_{g}$, between a satellite, $S$, and Earth? (A) (B) (C) (D)
Gravitational potential on the surface of earth is $(m=$ mass of the earth, $R=$ radius of earth) (a) - GM / $2 R$ (b) $-g R$ (c) $g R$ (d) $G M / R$
Round 1
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