The weight of 19.6n aluminum ball is immersed in a container, the buoyancy is 9.8N, and the density of aluminum is 2700kg / m3 There should be calculation process and formula

The weight of 19.6n aluminum ball is immersed in a container, the buoyancy is 9.8N, and the density of aluminum is 2700kg / m3 There should be calculation process and formula

According to f floating = g row = PGV, v = f floating / (ρ water g) = 9.8N / (10 ^ 3 * 9.8) = 10 ^ - 3M ^ 3 = 3000cm ^ 3, assuming that the aluminum ball is solid, then its mass is m = ρ v = (2.7 * 3000) n = 8100g = 8.1kg, gravity g = mg = (8.1 * 9.8) n = 79.38n > 19.6n, so it is hollow. I hope it can help you in the future