H2P-530

Circular orbits

H2 Physics · JC 2 · Hard · Circular orbits

A satellite of mass

500\,\text{kg}

orbits a planet of mass

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

in a circular orbit of radius

8.0\times10^{6}\,\text{m}

. Take

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

. Calculate the kinetic energy of the satellite using the expression

E_K = \dfrac{GMm}{2R}

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