this post was submitted on 16 Aug 2023
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How is pressure a scalar quantity? (lemmy.world)
submitted 1 year ago by TheSmartDude@lemmy.world to c/askphysics@lemmy.world
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Pressire acts on all directions, which means that pressure has a direction to act upon, allbeit plural. A scalar quantity is a force that has no direction to act upon. How is pressure a scalar quantity? Shouldn't it be a vector quantity?

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[–] A_A@lemmy.world 3 points 1 year ago

Surfaces are vector quantities so write :
P . S_vector = F_vector