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Author Question: The turntable of a record player has an angular velocity of 8.0 rad/s when it is turned off. The ... (Read 222 times)

yoroshambo

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The turntable of a record player has an angular velocity of 8.0 rad/s when it is turned off. The turntable comes to rest 2.5 s after being turned off. Through how many radians does the turntable rotate after being turned off? Assume constant angular acceleration.
 a. 12 rad
  b. 8.0 rad
  c. 10 rad
  d. 16 rad
  e. 6.8 rad

Question 2

A wheel rotating about a fixed axis with a constant angular acceleration of 2.0 rad/s2 turns through 2.4 revolutions during a 2.0-s time interval. What is the angular velocity at the end of this time interval?
 a. 9.5 rad/s
  b. 9.7 rad/s
  c. 9.3 rad/s
  d. 9.1 rad/s
  e. 8.8 rad/s



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randomguy133

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Answer to Question 1

C

Answer to Question 2

A





 

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