A telephone cable is clamped at A to the pole AB. Knowing that the tension in the right-hand portion of the cable is T2 = 1000 lb, deter- mine by trigonometry (a) the required tension T in the left-hand portion if the resultant R of the forces exerted by the cable at A is to be vertical, (b) the corresponding magnitude of R. %3D

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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8:05
76%
2
15°
25°
T2
B
A telephone cable is clamped at A to the pole AB. Knowing that the
tension in the right-hand portion of the cable is T, = 1000 Īb, deter-
mine by trigonometry (a) the required tension T¡ in the left-hand
portion if the resultant R of the forces exerted by the cable at A is
to be vertical, (b) the corresponding magnitude of R.
3
A steel tank is to be positioned in an excavation. Knowing that the
magnitude of P= 500 lb, determine the required angle a if the
resultant R of the two forces applied at A is to be vertical. Also,
determine the corresponding magnitude R.
425 lb
30°
4
Two forces P and Q are applied to the lid of a storage bin as shown.
Knowing that P =60 N and Q = 48 N, determine the magnitude and
direction of the resultant of the two forces.
85°
55°
25°
Reference:
Beer, F. P., Johnston, E. R. J., Mazurek, D. F., Cornwell, P. J., & Self, B. P. (2016). Vector Mechanics For
Engineers Statics and Dynamics (11th ed.). New York: McGraw-Hill Education.
Transcribed Image Text:8:05 76% 2 15° 25° T2 B A telephone cable is clamped at A to the pole AB. Knowing that the tension in the right-hand portion of the cable is T, = 1000 Īb, deter- mine by trigonometry (a) the required tension T¡ in the left-hand portion if the resultant R of the forces exerted by the cable at A is to be vertical, (b) the corresponding magnitude of R. 3 A steel tank is to be positioned in an excavation. Knowing that the magnitude of P= 500 lb, determine the required angle a if the resultant R of the two forces applied at A is to be vertical. Also, determine the corresponding magnitude R. 425 lb 30° 4 Two forces P and Q are applied to the lid of a storage bin as shown. Knowing that P =60 N and Q = 48 N, determine the magnitude and direction of the resultant of the two forces. 85° 55° 25° Reference: Beer, F. P., Johnston, E. R. J., Mazurek, D. F., Cornwell, P. J., & Self, B. P. (2016). Vector Mechanics For Engineers Statics and Dynamics (11th ed.). New York: McGraw-Hill Education.
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