Asked by Molly86
A long uniform rod of length 4.76 m and mass 5.48 kg is pivoted about a horizontal, frictionless pin through one end. The rod is
released from rest in a vertical position as in the figure.
(A)
At the instant the rod is horizontal, find its angular speed. The acceleration of gravity is 9.8 m/s2 . Answer in units of rad/s.
(B)
At the same instant find the magnitude of its angular acceleration. Answer in units of rad/s2.
(C)
Still at the same instant find the magnitude of the acceleration of its center of mass. Answer in units of m/s2.
(D)
Finally, find the magnitude of the reaction force at the pivot (still at the same moment). Answer in units of N.
released from rest in a vertical position as in the figure.
(A)
At the instant the rod is horizontal, find its angular speed. The acceleration of gravity is 9.8 m/s2 . Answer in units of rad/s.
(B)
At the same instant find the magnitude of its angular acceleration. Answer in units of rad/s2.
(C)
Still at the same instant find the magnitude of the acceleration of its center of mass. Answer in units of m/s2.
(D)
Finally, find the magnitude of the reaction force at the pivot (still at the same moment). Answer in units of N.
Answers
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