The spring ABC has a stiffness of 500N/m and an unstretched length of 6m. Calculate the horizontal force, F applied to the cord which is attached at B so that the displacement of the pulley from the wall is d= 1.5m. k = 500 N/m %3D 6 m k = 500 N/m

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The spring ABC has a stiffness of 500N/m and an unstretched length of 6m. Calculate the
horizontal force, F applied to the cord which is attached at B so that the displacement of
the pulley from the wall is d= 1.5m.
A
k = 500 N/m
6 m
F
k = 500 N/m
Fig. Q3
Force equation:
Force equation 3D
Moment 3D
Cosine rule
R - 4 +B-2AB cos e
F- Fi+Fj+Fk
Ff = F +F +F
moment about a point
M-rxF
Sine rule
F|
di+dj+dk
F F3
Fc
sin 4 sin B sinC
moment about an axis
M=rF
Force resultant
R-R
R +R
R.
8= tan
R
Transcribed Image Text:The spring ABC has a stiffness of 500N/m and an unstretched length of 6m. Calculate the horizontal force, F applied to the cord which is attached at B so that the displacement of the pulley from the wall is d= 1.5m. A k = 500 N/m 6 m F k = 500 N/m Fig. Q3 Force equation: Force equation 3D Moment 3D Cosine rule R - 4 +B-2AB cos e F- Fi+Fj+Fk Ff = F +F +F moment about a point M-rxF Sine rule F| di+dj+dk F F3 Fc sin 4 sin B sinC moment about an axis M=rF Force resultant R-R R +R R. 8= tan R
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