Suppose that P₁ = 360 lb and P₂ = 480 lb. (Figure 1) Part A Determine the force in the member BC. Express your answer in pounds to three significant figures. Enter negative value in the case of compression and positive value in the case of tension. 15. ΑΣΦ. 11 vec FBC= Submit ▾ Part B Request Answer Determine the force in the member CF. ? lb

Suppose that θtheta = 51 ∘. (Figure 1)   Part A Determine the coordinate direction angle α of the force F1. Express your answer using three significant figures.   Part B Determine the coordinate direction angle β of the force F1. Express your answer using three significant figures.   Part C Determine the coordinate direction angle γ of the force F1. Express your answer using three significant figures.

The frame shown supports a crate that weighs W = 250 lb. Knowing that L = 1.1 ft, determine the internal forces (N, V, M) at points E and F. Enter the internal normal force at F below. Express your answer in lb to the nearest whole lb. Remember the sign convention for internal forces, and use the correct sign. 1.5 ft 1.5 ft L L 4 ft B E 0.4 ft N

* Required Q3 The force acting on the gear tooth is F=45 KN. Resolve this force into two components acting along the lines aa and bb * b F. 80° 50° O F_a=57.85 KN, F_b=D45 KN F_a=32.46 KN, F_b=40 KN F_a=45.17 KN, F_b=45 KN F_a=65.46 KN, F_b=D35 KN REDMI NOTE 8 Pabove AI QUAD CAMERA