A sphere of volume V is made of a material with lower density than water. While on Earth, it floats on water with its volume f1V (f1 < 1) submerged. On the other hand, on a spaceship accelerating with acceleration a < g (g is the acceleration due to gravity on Earth) in outer space, its submerged volume in water is f2V. Then:
1
f2 = f1
2
f2 = (1 - \(\frac{a}{g}\)) f1
3
f2 > f1
4
f2 = \(\frac{a}{g}\) f1