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Author Question: A horizontal disk rotates about a vertical axis through its center. Point P is midway between the ... (Read 250 times)

nmorano1

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on: Jul 29, 2018
A horizontal disk rotates about a vertical axis through its center. Point P is midway between the center and the rim of the disk, and point Q is on the rim.
 
  If the disk turns with constant angular velocity, which of the following statements about it are true? (There may be more than one correct choice.)
  A) P and Q have the same linear acceleration.
  B) Q is moving twice as fast as P.
  C) The linear acceleration of Q is twice as great as the linear acceleration of P.
  D) The linear acceleration of P is twice as great as the linear acceleration of Q.
  E) The angular velocity of Q is twice as great as the angular velocity of P.

Question 2

When a rigid body rotates about a fixed axis, all the points in the body have the same
 
  A) tangential speed.
  B) angular acceleration.
  C) tangential acceleration.
  D) linear displacement.
  E) centripetal acceleration.


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swimkari

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B, C

Answer to Question 2

Answer: B


nmorano1

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Reply 2 on: Jul 29, 2018
Wow, this really help

sultana.d

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Reply 3 on: Yesterday
Excellent

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