ENGR 3120: StaticsTerm I, 2022/2023 School Year
Homework 4
Date Assigned:
Date Due:
1.
September 29, 2022
October 6, 2022
Analyze the system shown in Figure 1-1. Determine the forces in the members. The
magnitudes of P and Q are 300 lb and 200 lb respectively. Indicate whether they are in
tension or compression. (25 points)
Figure 1-1: Two bars with forces
2.
Analyze the system shown in Figure 2-1. Calculate the position vectors for Cables AB
and AC. Convert them to unit vectors. (25 points)
Figure 2-1: Plate supported by cables
3.
Analyze the system shown in Figure 3-1. Determine the forces in the cables if the crate
weight is 2000 lb. (50 points)
Figure 3-1: Crate supported by 3 cables
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