A floating object displaces its own weight. All you have to do
is convert 100 tons to an SI unit of weight (force).
1 ton = 2,000 pounds
100 tons = 200,000 pounds
The SI unit of force (weight) is the Newton.
On Earth, 1 kg of mass weighs 9.8 newtons, or 2.205 pounds.
(200,000 pounds) x (9.8 newtons / 2.205 pounds) = 888,900 newtons (rounded)
