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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 95 times)

yoroshambo

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on: Jul 28, 2018
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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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


yoroshambo

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Reply #2 on: Jul 28, 2018
Thank you!


randomguy133

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Reply #3 on: Jul 28, 2018
Always glad to help...


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