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Numerical - Angle made by coplanar forces
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Engineering Mechanics
Q. What is the angle made by force A with X and Y ?
(where X and Y are components of force A)
- Published on 21 Sep 15
a.
75.52
^{o}
b.
60.65
^{o}
c.
14.03
^{o}
d.
14.47
^{o}
ANSWER: 75.52
^{o}
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Discussion
dinesh thale
-Posted on 01 Apr 21
here, we want origin of sine rule . every question have short discusion from where it come's .. so it will be easily understood by student..lastly thank you so much...
Rajesh kumar
-Posted on 31 May 16
Vill nagra post neemgaon dicet lakhimpur kheri
Sravanthi
-Posted on 14 Dec 15
In this condition, force A is greater than force of X and Y. Hence, it is the condition of non perpendicular resolution.
Non perpendicular resolution:
It is defined as the resolution in which force resolved in two directions and they are not perpendicular to each other.
By using Sine rule,
(80 / sin α) = 40 / sin (180 – 2α)
sin α = 2 sin 2α
sin α = 2 [ 2 sin α cos α]
cos α = (1 / 2)
α = cos
^{-1}
(1 / 4)
α = 75.52°
➨
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