Write up an explanation on how to do an 'equilibrium' problem going through each of the steps and different situations. Then apply this knowledge to complete the following problem. Problem: Jim Bob is showing off his awesome biceps in the gym by doing curls. Assume that his elbow acts as a pin and that his arm has a mass of 2 kg and is uniform, so the force of gravity acts its center of its 13 inch (.33 m) length. Treat the muscle as a tension force acting straight up connected 1.5 in (0.037 m) from the elbow. Finally, he is lifting a 50 lb (22.7 kg) mass in his hand. Calculate all forces acting on the arm.

PLEASE ANSWER QUICKLT AND WILL RATE HIGHLY *15

Consider the following three forces: F₁ =(285 N)î+(468 N)ĵ, F₂ =(-127 N)î, and F3 =(-753 N)Ĵ.

Suppose you walk 18.0 m straight west and then 25.0 m straight north. How far are you from your starting point, and what is the compass direction of a line connecting your starting point to your final position? (If you represent the two legs of the walk as vector displacements A and B, as in Figure 21, then this problem asks you to find their sum R = A + B.

please do this question again using trig to find the angle