An object has a mass of 5kg.
(i) Calculate its weight in newton on the Earth. (Take g=9.8m/s2.)
(ii) Express this weight in kilogram-force (kgf).
(iii) On planet X the acceleration due to gravity is 12m/s2. Determine the weight of the same object on planet X in newton.
(iv) Compare the numerical values of its weight on the Earth and on planet X and state which one is larger and by what factor.