;Two forces of; 80N and 50N act simultaneously at a point. Find the resultant of the forces ;in magnitude and direction if the angle between them is 135 Degree.
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Answer:
30N
Explanation:
given,
the two forces are 80N,50N
angle between the forces theta is 135°
resultant force is
F eq =√((F1)^2+(F2)^2+2F1F2cos 135°).
F eq =√2500+6400+2(50)(80)(-√3/2)
(cos 135° is (-√3/2)
F eq= √(8900-8000)
F eq=√900=30 N
so resultant force is 30 N
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