statics

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Znk417

Engineering

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solve this equation from part A to G.

and feel free to ask any qus before you start solving this.

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w A cell tower exerts a force of 225KN vertically upward at point D. If the direction cosines for DB are 0.282 and -0.846 in the x and y directions, find: a) coordinates of B, b) tension in DC, DA, and DB for equilibrium, c) angle between DA and DC, d) moment exerted by cable DA about each axis, e) project the force DB onto line CA, f) project the moment of DB onto CA, g) give the direction angles for cable DB. 2 D AC 150 m B 0 50 m 60 m 40 m
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The attached document addresses the following questions:
a.

The coordinates of B are: (0.15, 1.35).

b. Tension in DC= 33.750 KN
DA= 42.750 KN
DB = 47.250 KN
c.

Angle between DA and DC= 86.40

d. Moment= 42750 KNm
e.

Force=mg = 47.250 KN

f.

Moment= 9922.5 KNm

g.

The direction angles are 1350 and 3150...


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