At town P the value of g is 9.8m/s2 while at town Q it is 9.6m/s2. A metal block shows a weight of 19.6N at P and 19.2N at Q. What can be said about the mass of the block?
(a) Mass is greater at Q than at P
(b) Mass cannot be compared with the given data
(c) Mass is the same at P and Q
(d) Mass is greater at P than at Q