Conceptual Example 12-9: A tragic substitution. Two walkways, one above the other, are suspended from vertical rods attached to the ceiling of a high hotel lobby. The original design called for single rods 14 m long, but when such long rods proved to be unwieldy to install, it was decided to replace each long rod with two shorter ones as shown. Determine the net force `A |2mg mg exerted by the rods on the supporting pin A (assumed to be the same size) for each design. Assume each vertical rod supports a mass m of each bridge. mg Force on pin A exerted by vertical rod Forces on pins at A exerted by vertical rods 哥昌:
Conceptual Example 12-9: A tragic substitution. Two walkways, one above the other, are suspended from vertical rods attached to the ceiling of a high hotel lobby. The original design called for single rods 14 m long, but when such long rods proved to be unwieldy to install, it was decided to replace each long rod with two shorter ones as shown. Determine the net force `A |2mg mg exerted by the rods on the supporting pin A (assumed to be the same size) for each design. Assume each vertical rod supports a mass m of each bridge. mg Force on pin A exerted by vertical rod Forces on pins at A exerted by vertical rods 哥昌:
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Conceptual Example 12-9: A tragic
substitution.
Two walkways, one above the other,
are suspended from vertical rods
attached to the ceiling of a high hotel
lobby. The original design called for
single rods 14 m long, but when such
long rods proved to be unwieldy to
install, it was decided to replace each
long rod with two shorter ones as
shown. Determine the net force
`A
|2mg
mg
exerted by the rods on the supporting
pin A (assumed to be the same size)
for each design. Assume each vertical
rod supports a mass m of each bridge.
mg
Force on pin A
exerted by
vertical rod
Forces on pins
at A exerted by
vertical rods
哥昌:
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