(13%) Problem 13: A fence post of mass m = 8 ky supports a fence with three lengths of barbed wire. The bottom wire is a distance d = 0.35 m from the ground and each wire is a distance 0.35 m above the previous one. Each of these three wires has the tension on it. For this problem, assume that the force exerted by these wires is purely horizontal. An additional guy wire is used to keep the pole upright with a tension of Fa = 490 N. The guy wire attaches to the post at a point h = 0.88 m above the ground and makes an angle of 0 = 55 with respect to the horizontal. h D Otheexpertta.com 25% Part (a) Choose the correct free body diagram. Correct! A 25% Part (b) Write an expression for the tension in any one of the three fence wires. Grade Summary T = Deductions Potential 1009% costa cos(Q cos(0) 7 8 9 HOME Submissions sin(a) sin(@) sin(0) 4 5 6 Attempts remaining: 3 (5% per attempt) 1 2 detailed view d Fa g + END h BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback. A 25% Part (c) Find the tension, in newtons, in any one of the three fence wires. 25% Part (d) What is the normal force that the ground exerts upward on the post