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°](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdd2a86ab-5eca-44a1-8fbc-cef85722edcd%2Ffd183e96-ce74-45e1-a5c0-4719406edf5f%2Fmsixohm_processed.jpeg&w=3840&q=75)
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