A satellite of mass 300 kg is in a circular orbit around theEarth at an altitude equal to the Earth’s mean ra￾dius Find (a) the satellite’s orbital speed, (b) the period of its revolution, and (c) the grav￾itational force acting on it.

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.