Discussion01 - Office Hours Monday and Tuesday from 11:15...

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Office Hours Monday and Tuesday from 11:15 to 12:30
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Learning Assistants Two learning assistants will be employed in this class: Matthew and Christopher They are here to help you answer clicker questions They will NOT provide direct answers to the questions asked, so please do not ask them “Which is the right answer?” or analogous questions They will help you with steps towards the answer, but they will not readily give you the solution
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Vectors General Physics I Mechanics Racquetball Striking a Wall Physics 140 Mt. Etna Stewart Hall
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I WANT YOU TO ASK QUESTIONS!
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Vector Operations Sum : vector + vector = vector Multiplication by a scalar : (scalar)(vector) = vector Scalar product (dot product): vector · vector = scalar Vector product (cross product): vector × vector = vector – Magnitude Direction – right-hand rule θ cos AB = B A r r θ sin AB = × B A r r
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Physical examples Sum : The total force acting on a body is the vector sum of all forces acting on it Scalar (dot) product : Work done by a force on a body is the dot
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