Lecture-02 - Introduction Lecture#02 Ch.1.5 1.8 Physics125...

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troduction and Vectors Introduction and Vectors Lecture #02 – Ch. 1.5 – 1.8 Physics 125–Fall 2010 Dr. Mike Melnichuk [email protected] Office: 2409 Randall Lab ffi H 200 00 / M & T R 1416 Rd l l Lb Office Hours: 2:00 – 4:00 / Mon. & Tue. in Rm. 1416 Randall Lab.
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Scalars and Vectors SCALAR - quantity that can be described by a single number: e.g. temperature, mass, money. VECTOR - quantity having both magnitude and direction : e.g. displacement, velocity, acceleration, force, momentum. • The magnitude always has a positive value – a number. he irection specified mathematically by an ngle hich • The direction is specified mathematically by an angle which can be positive or negative – another number.
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Geometric Representation of Vectors A Vector is represented (geometrically) by an Arrow . Magnitude of Vector = Length of Arrow [ e.g. magnitude of (vector) displacement = 2 km = 2000 m ] Direction of Vector = Direction of Arrow In Mathematics : i ti Al th Vt (A ) k ith ti ll Direction = Angle the Vector (Arrow) makes with a conventionally chosen directed line (axis ). – e.g. Here: 30 ° North of East .
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This note was uploaded on 12/08/2011 for the course PHYSICS 125 taught by Professor Unknown during the Fall '08 term at University of Michigan.

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Lecture-02 - Introduction Lecture#02 Ch.1.5 1.8 Physics125...

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