Calculate the acceleration of gravity on the surface of each of the following worlds. (a) Mars (mass = 0.11MEarth, radius = 0.53REarth). (b) Venus (mass = 0.82MEarth, radius = 0.95REarth).

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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.