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Angular and Linear Speed

Angular and Linear Speed. Math 3: Trigonometry Unit Ms. Cox. Formulas to memorize. ANGULAR SPEED: How fast an angle changes LINEAR SPEED: Distance over time (on a curve). Example:. A record is spinning at the rate of 25 rpm. If a ladybug is sitting 10 cm from the center of the record:

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Angular and Linear Speed

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  1. Angular and Linear Speed Math 3: Trigonometry Unit Ms. Cox

  2. Formulas to memorize • ANGULAR SPEED: How fast an angle changes • LINEAR SPEED: Distance over time (on a curve)

  3. Example: A record is spinning at the rate of 25 rpm. If a ladybug is sitting 10 cm from the center of the record: • What is the angular velocity of the ladybug? • What is the speed of the ladybug (in cm/sec)? • After 20 seconds, how far has the ladybut traveled? • After 20 seconds, what angle has the ladybug turned through?

  4. example Tires on a car revolve at 500 rpm. If the diameters of the tires are 30 inches, find the linear speed of the car in mph. (63,360 inches = 1 mile)

  5. Homework: Review your notes and try problems #2, #3 on the worksheet

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