The 25-lb slender rod has a length of o ft. Using a collar of negligible mass, its end A is confined to move along the smooth circular bar of radius 3/2 ft. End Brests on the floor, for which the coefficient of kinetic friction JAn- 0.36. The bar is released from rest when 0- 30°.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The 25-lb slender rod has a length of 6 ft. Using a collar of negligible mass, its end A is confined to move along the smooth circular bar of radius 3/2 ft. End B rests on the floor, for which the coefficient of kinetic friction is
HB = 0.36. The bar is released from rest when 0 = 30°.
6 ft
B
Part A
Determine the angular acceleration of the bar at this instant, measured clockwise.
Express your answer using three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise.
ANSWER:
a =
rad/s
Transcribed Image Text:The 25-lb slender rod has a length of 6 ft. Using a collar of negligible mass, its end A is confined to move along the smooth circular bar of radius 3/2 ft. End B rests on the floor, for which the coefficient of kinetic friction is HB = 0.36. The bar is released from rest when 0 = 30°. 6 ft B Part A Determine the angular acceleration of the bar at this instant, measured clockwise. Express your answer using three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise. ANSWER: a = rad/s
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