Figure E11.8 11.8 A 60.0-cm, uniform, 50.0-N shelf is supported horizontally by two vertical wires attached to the sloping ceiling (Fig. E11.8). A very small 25.0-N tool is placed on the shelf midway between the points where the wires are attached to it. Find the ten- 75.0 cm 25.0 cm 20.0 cm, Tool sion in each wire. Begin by making a free-body diagram of the shelf.

Figure E11.8 11.8 A 60.0-cm, uniform, 50.0-N shelf is supported horizontally by two vertical wires attached to the sloping ceiling (Fig. E11.8). A very small 25.0-N tool is placed on the shelf midway between the points where the wires are attached to it. Find the ten- 75.0 cm 25.0 cm 20.0 cm, Tool sion in each wire. Begin by making a free-body diagram of the shelf.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 75PQ: Ruby, with mass 55.0 kg, is trying to reach a box on a high shelf by standing on her tiptoes. In...

See similar textbooks

Similar questions

A painter climbs a ladder. Is the ladder more likely to slip when the painter Is near the bottom or near the top?
A 15.0-in uniform ladder weighing 500 N rests against frictionless wall. The ladder makes a 60.0 angle ESI with the horizontal, (a) Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 800-N firelighter has climbed 4.00 m along the ladder from the bottom, (b) If the ladder is just on the verge of slipping when the firefighter is 9.00 m from the bottom, what is the coefficient of static friction between ladder and ground?
In order to get his car out of the mud, a man ties one end of a rope to the front bumper and the other end to a tee 15 m away as shown below. He then pulls on the center of the rope with a force of 400 N, which causes its center to be displaced 0.30 m, as shown. What is the force of the rope on the car?
Is it possible to rest a ladder against a rough wall when the floor is frictionless?
In Example 14.3, we found that one of the steel cables supporting an airplane at the Udvar-Hazy Center was under a tension of 9.30 103 N. Assume the cable has a diameter of 2.30 era and an initial length of 8.00 m before the plane is suspended on the cable. How much longer is the cable when the plane is suspended on it?
A suspender rod of a suspension bridge is 25.0 m long. If the rod is made of steel, what must its diameter be so that it does not stretch more than 1.0 cm when a 2.5104kg tuck passes by it? Assume that the rod supports all of the weight of the truck.
Check Your Understanding Find the compressive stress and strain at the base of Nelson’s column.
When the structure shown below is supported at point P, it is in equilibrium. Find the magnitude .of force F and the force applied at P. the weight of the structure is negligible.
Ruby, with mass 55.0 kg, is trying to reach a box on a high shelf by standing on her tiptoes. In this position, half her weight is supported by the normal force exerted by the floor on the toes of each foot as shown in Figure P14.75A. This situation can be modeled mechanically by representing the force on Rubys Achilles tendon with FA and the force on her tibia as FT as shown in Figure P14.75B. What is the value of the angle and the magnitudes of the forces FA and FT? FIGURE P14.75
A 500.-N uniform rectangular sign 4.00 mwide and 3.00 m high is suspended from ahorizontal, 6.00-m-long, uniform, 100.-N rodas indicated in Figure P8.25. The left end ofthe rod is supported by a hinge, and the rightend is supported by a thin cable making a30.0° angle with the vertical. (a) Find the tensionT in the cable. (b) Find the horizontaland vertical components of force exerted onthe left end of the rod by the hinge.
A hungry bear weighing 700. Nwalks out on a beam in an attemptto retrieve a basket of goodieshanging at the end of the beam(Fig. P8.28). The beam is uniform,weighs 200. N, and is 6.00 m long,and it is supported by a wire atan angle of θ = 60.0°. The basketweighs 80.0 N. (a) Draw a forcediagram for the beam. (b) Whenthe bear is at x = 1.00 m, find thetension in the wire supporting thebeam and the components ofthe force exerted by the wall on the left end of the beam. (c) Ifthe wire can withstand a maximum tension of 900. N, what is themaximum distance the bear can walk before the wire breaks?
a horizontal rod (m=5.2 kg) is hinged to a wall at the left end and three forces are acting on the rod as shown in the figure: the force of gravity (mg), a tension force (T), and the force exerted by the hinge (broken into components Fx and Fy) If theta = 35 degrees, what must T be equal to in order to keep the rod static?