Question: what is the buoyant force acting on the object in newtons?
Answer: To calculate the buoyant force, simply plug in the numbers. Now our equation reads: FB = 1.0 kg/L * 1.0 L * 9.8 m/s2. Once we do the math, we find that the buoyant force equals 9.8 kg-m/s2, which is the same as 9.8 Newtons. If the weight of the object is more than 9.8 N, then the object will sink.