Homework (1) Vector Mechanics For Engineera- Statics - Book Report/Review Example

Knowing that α = 20°, determine by trigonometry (a) the required magnitude of the force P if the resultant R of the two forces applied at A is to be vertical, (b) the corresponding magnitude of R. 2.15 Solve Prob. 2.2 by trigonometry. Two forces P and Q are applied as shown at point A of a hook support. Knowing that P = 60 lb and Q = 25 lb, determine the magnitude and direction of the resultant. 2.19 Two structural members A and B are bolted to a bracket as shown. Knowing that both members are in compression and that the force is 10 kN in member A and 15 kN in member B, determine by trigonometry the magnitude and direction of the resultant of the forces applied to the bracket by members A and B. 2.28 The guy wire BD exerts on the telephone pole AC a force P directed along BD.

Knowing that P has a 180-N component along line AC, determine (a) the magnitude of the force P, (b) its component in a direction perpendicular to AC. 2.57 For the cables of Prob. 2.45, it is known that the maximum allowable tension is 600 N in cable AC and 750 N in cable BC. Determine (a) the maximum force P that can be applied at C, (b) the corresponding value of