A 59-kg woman holds a 8-kg package as she stands within an elevator which briefly accelerates upward at a rate of 0.22g. Determine the force R which the elevator floor exerts on her feet and the lifting force L which she exerts on the package during the acceleration interval. If the elevator support cables suddenly and completely fail, what values would R and L acquire?
A 59-kg woman holds a 8-kg package as she stands within an elevator which briefly accelerates upward at a rate of 0.22g. Determine the force R which the elevator floor exerts on her feet and the lifting force L which she exerts on the package during the acceleration interval. If the elevator support cables suddenly and completely fail, what values would R and L acquire?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A 59-kg woman holds a 8-kg package as she stands within an elevator which briefly accelerates upward at a rate of 0.22g. Determine
the force R which the elevator floor exerts on her feet and the lifting force L which she exerts on the package during the acceleration
interval. If the elevator support cables suddenly and completely fail, what values would R and L acquire?
8kg
0.22g
59kg
Answers:
While accelerating,
R =
i
N L =
i
! N
After the cables fail. R=
i
N L=
i
! N
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