Teach: Displacement and velocity

AimstextConsiderationsThis unit is all about vectors and scalars. Many text books start with a list of which quantities are vectors and which are scalars. I prefer to reveal this as the quantities are defined. What"s the point in knowing that energy is a scalar and momentum a vector before you know what they are. There are also the tricky ones like work that sounds like it should be a vector and angular momentum that...

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