Two forces of 80 N and 70 N act simultaneously at a point. Find the resultant force, if the angle
between them is 150°
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Explanation:
f1 =80 N f2 = 70N F=√f12 +f22+f1. f2 cosΦ F=√6400+4900+5600cos 150° F=√ 11300+5600 . -√3/2 F =√11300+2800.-√3 F=10√113-28√3 F=10√113-(28x1.73) F=10√113-48.44 F=10√64.56 F=10×8.034 F 80.34
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28100N
Explanation:
F1=80N,F2=70N
cos150°=√3/2
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