JAMB - Physics (1988 - No. 3)
Two forces whose resultant is 100N, are at right angle to each other. If one of them makes an angle 30o with the resultant, determine its magnitude.
8.66N
50.0N
57.7N
86.6N
Explanation
COS 30o = \(\frac{F_1}{100}\)
F1 = 86.6N
F1 = 86.6N
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