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angular displacement (q) |
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the amount of rotation |
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degrees |
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radians |
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revolutions |
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1 rev = 360° = 2p rad |
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angular
velocity (w) |
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the rate of change in angular displacement |
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radians/second |
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compare to frequency ( f ) |
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f = rev/sec or rev/min |
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w = rad/sec |
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Angular Acceleration (a) |
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the rate of change in angular velocity. |
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rad/sec2 |
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Linear velocity (v) will be expressed in units
such as ft/s or m/s. |
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Rotational velocity (w) will be expressed in
rad/sec, but most often determined from the frequency in rev/min or
rev/sec. |
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What is being asked for ? |
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What is given ? |
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What facts(formula) relate what is asked with
what is given ? |
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Substitute |
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Calculate |
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CHECK THE ANSWER!! |
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Does it answer the question? |
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Does it make sense? |
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Is there a need for rounding? |
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Notes