A spring balance is calibrated on Earth to read directly in newtons. At a place where the acceleration due to gravity is g=9.8ms−2 it records a steady reading of 39.2N when an object is suspended from it.
(i) Calculate the mass of the object.
(ii) The same balance is taken to the Moon where the value of g is 1.63ms−2. What reading will the balance show for the same object?
(iii) If a beam balance were used instead of the spring balance on the Moon, what mass would it indicate for the object? Briefly justify your answer.