A hot-air balloon is still in the air. It is known that the total mass of the balloon and the object is 100 kg. What is the buoyancy at this time______ Cattle

A hot-air balloon is still in the air. It is known that the total mass of the balloon and the object is 100 kg. What is the buoyancy at this time______ Cattle

The object floats in the air, buoyancy is equal to gravity, so f = g = mg = 100 × 10N = 1000N, so the answer is 1000N