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- Vectors are quantities that have both mmagnitude and direction.
- Vectors include displacement, velocity,, acceleration, force, electric current, ...
- Scalar quantities have only magnitude.
- Scalars include, length, mass, distancee, time, ...
- Vectors can be represented in bold typee with an arrow above the symbol.
- Vectors are represented by drawing arroows:
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- The length and direction of a vector shhould be drawn to a reasonable scale size to show its magnitude.
10km ---------->
20km -------------------->
- When vectors are added together they shhould be drawn head to tail to determine the resultant or sum vector.
10km + 20km |---------->-------------------->|
- By measuring a scale version, the resulltant of the two vectors can be determined.
- In subtracting vectors the vector beingg subtracted needs to be turned completely around before the resultant can be determined.
10km - 20km |<----------|---------->
OR
20km - 10km |----------|<---------->
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