The acceleration due to gravity on planet X is 2,7 m∙s-2. The radius of this planet is a third (⅓) of the radius of Earth.
5.1 Explain the difference between weight and mass. (2)
5.2 Calculate the mass of planet X. (4)
5.3 Determine the factor by which the weight of an object on planet X will differ from the weight of the same object on Earth. (2)