# The correct answer is: 40.38kN I don't understand how to get to this answer, I would...

###### Question:

I don't understand how to get to this answer, I would like to see the work needed to get there.

Chapter 5, Reserve Problem 009 x Your answer is incorrect. The pin-connected assembly consists of aluminum rods (1) and (2) and steel rod (3). The aluminum rods each have a diameter of 14 mm and an elastic modulus of E = 69 GPa. The steel rod has a diameter of 21 mm and an elastic modulus of E = 205 GPa. Assume a = 4.2 m, b = 1.9 m, and c = 1.1 m. What is the magnitude of load P that is necessary to displace point A 6 mm to the left? O _140.38 Answer: P = kN KN the tolerance is +/-2%

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