Author Question: A horizontal disk rotates about a vertical axis through its center. Point P is midway between the ... (Read 265 times)

nmorano1 · **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.