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Concept explainers
(a)
The moment about O
(a)
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Answer to Problem 3.24P
The moment about O
Explanation of Solution
Given information:
The tension in the wire (F) is 435 N.
The distance between corner D to corner E (a) is 120 mm.
The height of corners CA (h) is 160 mm.
The distance between corner A to origin O (b) is 90 mm.
The distance between corner B to origin O (c) is 120 mm.
Calculation:
Calculate the distance between corner A and corner B (B) using the relation:
Substitute 90 mm for b and 120 mm for c.
Calculate the length between corner A to corner E using the relation:
Substitute 0.21 m for B, 160 mm for h and 120 mm for a.
Calculate the unit
Substitute
Calculate the force at corner A
Substitute 435 N for F and
Write the expression for the position vector from corner A to corner O
Substitute 90 mm for b and 160 mm for h.
Calculate the moment about origin O
Substitute
Thus, the moment about O
(b)
The moment about O
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 3.24P
The moment about O
Explanation of Solution
Given information:
The tension in the wire (F) is 435 N.
Calculation:
Calculate the force at corner E
Substitute
Write the expression for the position vector from corner E to corner O
Substitute 120 mm for c and 120 mm for b.
Calculate the moment about origin O
Substitute
Thus, the moment about O
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Chapter 3 Solutions
VECTOR MECH...,STAT.+DYNA.(LL)-W/ACCESS
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