Form the figure shown, a flexible belt placed around a rotating drum of 4-inch radius acts as a brake when the arm ABCD is pulled down by the force P. The coefficient of kinetic friction between the belt and the drum is 0.7. What force P that would result in a braking torque of 400 lb. in., assuming that the drum is rotating Neglect the weight of the counterclockwise. brake arm.
Form the figure shown, a flexible belt placed around a rotating drum of 4-inch radius acts as a brake when the arm ABCD is pulled down by the force P. The coefficient of kinetic friction between the belt and the drum is 0.7. What force P that would result in a braking torque of 400 lb. in., assuming that the drum is rotating Neglect the weight of the counterclockwise. brake arm.
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.60P: The force P applied to the brake handle enables the band brake to reduce the angular speed of a...
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![Problem#2:
Form the figure shown, a flexible belt placed
around a rotating drum of 4-inch radius
acts as a brake when the arm ABCD is pulled
down by the force P. The coefficient
of kinetic friction between the belt and the
drum is 0.7. What force P that
would result in a braking torque of 400 lb. in.,
assuming that the drum is rotating
counterclockwise. Neglect the weight of the
brake arm.
60°
A
-2 in.-
4 in.
B
4 in.
60°
in.
D
Р](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0e5eaa9c-456c-4132-bc43-1621a8513726%2F2c375185-ff80-4e50-b6d7-f12b742fdb26%2Fb33jahb_processed.png&w=3840&q=75)
Transcribed Image Text:Problem#2:
Form the figure shown, a flexible belt placed
around a rotating drum of 4-inch radius
acts as a brake when the arm ABCD is pulled
down by the force P. The coefficient
of kinetic friction between the belt and the
drum is 0.7. What force P that
would result in a braking torque of 400 lb. in.,
assuming that the drum is rotating
counterclockwise. Neglect the weight of the
brake arm.
60°
A
-2 in.-
4 in.
B
4 in.
60°
in.
D
Р
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