Question

the mass of a giraffe on the moon would be?
A. less than its mass on Jupiter
B. the same as its weight on the moon
C. more than its mass on Jupiter
D. none of the above

Answer 1

Mass is constant
Weight varies with gravity as in reference to earth

Answer 2

d. none of the above

Answer 3

mass remains constant wheresoever he is..Of course the giraffe won't travel at the speed of light,will it? If it does then things are gonna become complicated.
^_^