For a planet of mass

PHYSICS · Subjective · CBSE · Physics · Gravitation · Gravitation

Problem

For a planet of mass

6.0\times10^{24}\,\text{kg}

, the gravitational potential at an external point is

V=-\dfrac{G M}{r}

. Calculate the magnitude of gravitational field intensity at a point

2.5\times10^{7}\,\text{m}

from the planet’s centre. Take

G=6.67\times10^{-11}\,\text{N m}^2\text{kg}^{-2}

.

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