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21 Cards in this Set
- Front
- Back
sin ø
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leg opposite ø / hypotenuse
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cos ø
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leg adjacent to ø/ hypotenuse
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tan ø
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leg opposite ø/ leg adjacent to ø
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soh-cah-toa
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sin- opposite/hypotenuse
cos- adjacent/hypotenuse tan - opposite/ adjacent |
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pythagorean theorum
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(hypotenuse)^2= (leg a)^2 + (leg b)^2
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scalar quantity
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represented by a number and a unit (e.g., temperature, pressure, energy,
etc.). |
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vector quantity
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represented by a number and a unit along with a direction (e.g., above)
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coordinate system
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a line.
essential features: -origin -positive end -negative end |
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position of an object
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determined relative to the coordinate system
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displacement
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change in position of an object.
> may be + or -. the sign indicates the direction of displacement > dX= Xfinal- Xinitial |
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distance
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> always a positive quantity
> contains no information about the initial or final position of an object. |
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average velocity
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vector defined to be the change in
position of an object divide by the elapsed time for themotion. |
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average speed
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total distance traveled divided by the elapsed time.
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distance
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> always a positive quantity
> contains no information about the initial or final position of an object. |
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average velocity
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vector defined to be the change in
position of an object divide by the elapsed time for themotion. |
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average speed
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total distance traveled divided by the elapsed time.
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distance
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> always a positive quantity
> contains no information about the initial or final position of an object. |
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average velocity
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> vector defined to be the change in
position of an object divide by the elapsed time for the motion. > can be positive or negative |
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average speed
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> total distance/ total time
> can only be positive |
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Vox
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Vo(cosø)
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Voy
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Vo(sinø)
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