The proof of mass vector.

On May 11, 7:56 am, Ka-In Yen wrote:
Again, let's check this equation pressure = force / area.
Force is a 3D vector and pressure is a scalar, therefore
area is a 3D vector.
area = force / pressure

p= rho * g dot h

p is the pressure in a static fluid.
rho is the volume density of fluid.
g is the acceleration of gravity.
h is the depth of fluid.
dot is the dot product.

The above equation tells that pressure HAS
TO be a scalar quantity in 3D vector algebra
of physics.