Multiple Choice
A uniform rod is 2.0 m long. The rod is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest at an angle of 30° above the horizontal. What is the angular acceleration of the rod at the instant it is released?
A) 4.7 rad/s2
B) 6.9 rad/s2
C) 6.4 rad/s2
D) 5.6 rad/s2
E) 4.2 rad/s2
Correct Answer:

Verified
Correct Answer:
Verified
Q72: The rigid body shown rotates about an
Q73: The angular speed of the hour hand
Q74: A uniform rod (length = 2.0 m)
Q75: Particles (mass of each = 0.40 kg)
Q76: Exhibit 10-3<br>The graph below shows a plot
Q77: Exhibit 10-3<br>The graph below shows a plot
Q78: The graphs below show angular velocity as
Q79: A uniform meter stick is pivoted to
Q80: A wheel rotates about a fixed axis
Q82: A uniform rod (length = 2.4 m)