Monday, September 14, 2015

buoyancy - Archimedes' principle


Archimedes principle says that if a body is immersed in water the weight of displaced water is equal to the buoyancy force experienced by the body. Why volume of displaced water is equal to buoyancy and not to the substance immersed in it?




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...