Question
Asked Sep 22, 2019
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The 150-kg bar ABO is supported by two cables at A and a slider bearing at B. The end of the bar presses against a frictionless surface at O.Findthe tensions in the cables and the contact force at O.

C
3 m
5 m
3 m
6 m
В
у
A
Fig. P5.61
4 m
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C 3 m 5 m 3 m 6 m В у A Fig. P5.61 4 m

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Expert Answer

Step 1

The free diagram of problem is given below:

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3 m 5 m FOA о! Тас 3 m 6 m в - у ЛАВ Fв mg 150g А х 4 m

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Step 2

The co-ordinates of points is:

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A (9,0,0) B-(3,0,0) C=(0,-3,4) D (0,5,4) Position vector of points is, TOB 3i+0jk AC(0-9)+(-3-0)i+(4-0)k TAC 91-3+4k AD(0-9)+(5-0)j+(4-0)k AD -9i+54k

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Step 3

The magnitude of abov...

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(-9) +(-3) +(4) = v81+9+16 V106 =N-9)" +(s)* + (4}j AD = v81+25 +16 V122 unit vector is 3 k j+ AC Vi06106 V106 AC 5 4 V122 v122 v122

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