if planet has mass twice that of the earth and radius 3times more than the earth then find weight 0.1g mass on the surface of the planet?
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An object experiences a net zero external unbalanced forces it possible for the object to be travelling with a non-zero velocity? If yes, state the conditions that must be placed on the magnitude and direction of the velocity. If no, provide a reason
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Surface gravity is proportional to mass and inversely proportional to the square of the radius.
Double the mass for same radius means double the surface gravity.
Double the radius for the same mass means a quarter of the surface gravity
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