is being 6-66 The garage door ABCE shown in Fig. raised by a cable DE. The one-piece door is a homogeneous rectangular slab weighing 225 lb. Frictionless rollers B and Crun in tracks at each side of the door as shown. Determine the tension Tin the cable and the forces B and C on the fric- tionless rollers when d = 75 in. E 12 in. 12 in. 6 in. 30 in. B 48 in. 90 in. 100 in.

is being 6-66 The garage door ABCE shown in Fig. raised by a cable DE. The one-piece door is a homogeneous rectangular slab weighing 225 lb. Frictionless rollers B and Crun in tracks at each side of the door as shown. Determine the tension Tin the cable and the forces B and C on the fric- tionless rollers when d = 75 in. E 12 in. 12 in. 6 in. 30 in. B 48 in. 90 in. 100 in.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter5: Three-dimensional Equilibrium

Section: Chapter Questions

Problem 5.42P: The 350-lb homogeneous plate has the shape of an isosceles triangle. The plate is supported by a...

See similar textbooks

Similar questions

The uniform ladder of weight W is raised slowly by applying a vertical force P to the rope at A. Show that P is independent of the angle .
The 350-lb homogeneous plate has the shape of an isosceles triangle. The plate is supported by a thrust hinge at A, a slider hinge at B, and the cable CD. Find the force in the cable and the magnitudes of the hinge reactions.
The figure shows a three-pin arch. Determine the horizontal component of the pin reaction at A caused by the applied force P.
The 180-lb homogeneous bar is supported by a ball-and-socket joint at A and two cables attached to B. Determine the forces in the cables.
Find the force P required to (a) push; and (b) pull the 80-lb homogeneous roller over the 3-in. curb.
The homogeneous plate of weight W is supported by a ball-and-socket joint at D and three wires. Draw the FBD of the plate and count the unknowns.
Sample Problem 1. An engine with weight w hangs from a chain that is linked at a point O to two other chains, one is connected to the ceiling and the other one to the wall. Find the tension in each of the three chains, assuming that w is given and the weights of the chains are negligible. Fren ty agram of ergine h m of ring O Fre toty Solution: Ti is equal to weight w. The horizontal and slanted chains don't exert forces on the engine itself but they are connected on the ring where the three chains join. The weight of the ring itself is negligible. T, Ta, and Ty are the magnitudes of the forces while their directions are shown in the free-body diagram. Take note that the downward force with magnitude Ti of the chain acting on the engine are not an action-reaction pair. Using the x and y-components, we find that EFx 0, Ta cos 70 + (-Ta)-0 EF,-0, Ts sin 70' + (-T)-0 Because T-w, we can rewrite the second equation as: T3-T1/sin 70- w/ sin 70-0.940w We can now use this equation in the…
is supported at the left end 6-86 Beam CD of Fig. C by a smooth pin and bracket and at the right end D by a continuous cable that passes around a frictionless pulley. The lines of action of the force in the cable pass through point D. Determine the components of the reaction at sup- port C and the force in the cable when a 5-kN load W is be- ing supported by the beam. 2 m 2 m A D 3 m 4 m 4 m.
A rear suspension system for a front wheel-drive vehicle is shown here. Spring EF is offset behind member CD. The normal force due to contact between 2 wheel and the road is 4200 N. Assume the weight of the wheel and suspension system components is negligible. (a) Determine the magnitude of the force in member CD. Is the member in tension or compression? (b) Determine the support reactions at A. (c) Determine the unstretched length of the spring EF given a spring constant of 150 kN/m. 60 mm 1130 mm 60 mm 245 mm D 220 mm F 260 mm E B 165 mm 90 mm F = 4200 N
The truss shown is used to support a 11 kg block with a pin at A and a roller at E. Given a = 1.1 m, b = 0.7 m, c = 1.2 m and d = 1.2 m find the Internal forces in members AB, BD, BC and Co. b d A E The force in member AB Is The force In member BC Is The force In member BD Is The force In member CD Is B D C N In (Click to select) (Click to select) N In N In (Click to select) IN In (Click to select) (Click to select) tension compression V V
Problem 1: The The uniform 30-kg ventilation door OAP is opened by the mechanism shown. Plot the required force in the cylinder DE as a function of the door opening angle over the range 0 < 0 < Omax, where 0max is the maximum opening. Determine the minimum and maximum values of this force and the angles at which these extremes occur. Note that the cylinder is not horizontal when 0 = 0. - 275 525 A OB 300 E D 100 350 400 - AB = 300 CD = DB = 150 %3D Dimensions in millimeters
The cylinders in the figure shown are piled in a rectangular ditch as shown. The radii of cylinders A,B and C are 4m , 6m, and 5m respectively. Neglecting the friction. Determine the reaction between the wall and B in kN.