A loudspeaker of mass 19.0 kg is suspended a distance of h = 1.40 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.10 m  What is the tension T in each of the cables?

An 88 kg person stands on a uniform ladder 4.0 m long, that weighs 100 N, as shown in the figure(Figure 1). The floor is rough; hence, it exerts both a normal force, f1, and a frictional force, f2, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force, f3. Figure f₁ mg f3 a-3.8 m 1 of 1 Part A Using the dimensions given in the figure, find the forces exerted on the ladder when the person is halfway up the ladder. Express your answers using two significant figures separated by commas. fi, f2, f3 962.4,157.17,157.17 Submit ΓΨΠ ΑΣΦ Part B Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining f1, f2, f3 = w Find the forces exerted on the ladder when the person is three-fourths of the way up the ladder. Express your answers using two significant figures separated by commas. VE ΑΣΦ kN ≈ ? kN

The truss structure in a Figure Q4a is supported at A and B and has three forces acting vertically at nodes D, E and C, where F₁ = 25 KN, F2 = 75 kN and F3 = 35 kN. The horizontal distance between nodes A and B is d₁= 3.50 m and the horizontal distance between nodes B and C is d₂= 3.50 m. The angle a = = 60°, B = 60° and angle 0 = 30°. α F1₁ d1 3 IB * F2 E d2 Ꮎ F3 с Figure Q4a a) Determine the reactions at RA and Rc and A and C. Give your answers in kilonewtons (kN) to two decimal places. b) Determine the force acting in member AB and clearly state if the member is in compression or tension. Give your answer in kilonewtons (kN) to two decimal places.

A bag of cement whose weight is Eg hangs in equilibrium from three wires as shown in Figure. Two of the wires make angles 01 and 02 with the horizontal. Assuming the system is in equilibrium. What is the tension in the left-hand wire? Fg cos 02 a) T1 sin(8,+82) Fg sin 02 sin(e,+82) b) T1 2Fg cos 02 c) T1 sin(e,+02) 2Fg sin 82 d) T = cos(e,+02) 3Fg sin 02 e) T1 cos(e,+02) CEMENT

How much tension must a 28.0 m long wire be able to exert without breaking when it is used to hang an iron sculpture that weighs 2784 N? The wire must be attached to two anchors in the ceiling 16.1 m apart.

The steel I-beam in the drawing has a weight of 7.74 x 10³ N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends? 70.0⁰ 70.0⁰ I-beam

What is the horizontal component of the force F that the wall exerts on the plank? Q 1900 N O −1100 N O1400 N O −3600 N

A fence post of mass m = 8 kg 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 = 0.86 m above the ground and makes an angle of θ = 45 with respect to the horizontal. Write an expression for the tension in any one of the three fence wires.  What is the normal force that the ground exerts upward on the post?

The steel I-beam in the drawing has a weight of 1.51 × 103 N and is being lifted at a constant velocity. What is the tension in each cable attached to its ends?