A is immersed in water, buoyancy must act on A; B is at the bottom of the container, there is no water between B and the container, that is to say, the bottom of B is not in contact with water, so will buoyancy act on B? Some people say buoyancy works on B, but I don't think so. B is like a suction hook. Water presses B on the bottom of the container. Buoyancy does not act on B. I'm not sure I'm absolutely right. 
Monday 24 September 2018
forces - Will buoyancy act on B?
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