4. Determine by trigonometry the magnitude of the force P so that the resultant of the two forces applied at A is vertical. 20 lb 40° 25° P 80°

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4. Determine by trigonometry the magnitude of the force P so that the resultant of the two forces
applied at A is vertical.
20 lb
40°
25°
A. 15.24 lb
B. 14.74 lb
C. 16.24 lb
D. 19.24 lb
P
80°
Transcribed Image Text:4. Determine by trigonometry the magnitude of the force P so that the resultant of the two forces applied at A is vertical. 20 lb 40° 25° A. 15.24 lb B. 14.74 lb C. 16.24 lb D. 19.24 lb P 80°
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