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Linear and angular speed

Linear and angular speed. 4.1. Arc length. s = r must be in radians. speed. Linear speed = s/t Angular speed = /t. Convert to radians. 135 540 -270. Convert to degrees. Finding arc length. A circle has a radius of 4 in. Find the length of the arc intercepted by a 240 angle.

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Linear and angular speed

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  1. Linear and angular speed 4.1

  2. Arc length • s = r • must be in radians

  3. speed • Linear speed = s/t • Angular speed = /t

  4. Convert to radians • 135 • 540 • -270

  5. Convert to degrees

  6. Finding arc length • A circle has a radius of 4 in. Find the length of the arc intercepted by a 240 angle.

  7. Linear speed • The second hand of a clock is 10.2 cm long. Find the linear speed of the tip of the second hand.

  8. Angular speed • A lawn roller with a 10.2 in radius makes 1.2 revolutions per second. Find the angular speed of the roller. Find the speed of the tractor that is pulling the roller.

  9. homework • Pg 255 # 45-63, 96-98

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