Sterling Archer, despite failing repeatedly at pole-vaulting, is determined to master the skill. He is holding a vaulting pole parallel to the ground. The pole is 5 m long. Archer grips the pole with his right hand 10 cm from the top end of the pole and with his left hand 1 m from the top end of the pole. Although the pole is quite light (its mass is only 2.5 kg), the forces that Archer must exert on the pole to maintain it in this position are quite large. How large are they? (Assume that Archer exerts only vertical—up or down—forces on the horizontal pole and that the center of gravity of the pole is located at the center of its length.) 40.9 N downward 65.4 N upward
Sterling Archer, despite failing repeatedly at pole-vaulting, is determined to master the skill. He is holding a vaulting pole parallel to the ground. The pole is 5 m long. Archer grips the pole with his right hand 10 cm from the top end of the pole and with his left hand 1 m from the top end of the pole. Although the pole is quite light (its mass is only 2.5 kg), the forces that Archer must exert on the pole to maintain it in this position are quite large. How large are they? (Assume that Archer exerts only vertical—up or down—forces on the horizontal pole and that the center of gravity of the pole is located at the center of its length.) 40.9 N downward 65.4 N upward
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter12: Rotation I: Kinematics And Dynamics
Section: Chapter Questions
Problem 84PQ
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Sterling Archer, despite failing repeatedly at pole-vaulting, is determined to master the
skill. He is holding a vaulting pole parallel to the ground. The pole is 5 m long. Archer
grips the pole with his right hand 10 cm from the top end of the pole and with his left
hand 1 m from the top end of the pole. Although the pole is quite light (its mass is only
2.5 kg), the forces that Archer must exert on the pole to maintain it in this position are
quite large. How large are they? (Assume that Archer exerts only vertical—up or
down—forces on the horizontal pole and that the center of gravity of the pole is located at
the center of its length.)
40.9 N downward
65.4 N upward
skill. He is holding a vaulting pole parallel to the ground. The pole is 5 m long. Archer
grips the pole with his right hand 10 cm from the top end of the pole and with his left
hand 1 m from the top end of the pole. Although the pole is quite light (its mass is only
2.5 kg), the forces that Archer must exert on the pole to maintain it in this position are
quite large. How large are they? (Assume that Archer exerts only vertical—up or
down—forces on the horizontal pole and that the center of gravity of the pole is located at
the center of its length.)
40.9 N downward
65.4 N upward
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