Engineering Mechanics: Statics & Dynamics (14th Edition)
14th Edition
ISBN: 9780133915426
Author: Russell C. Hibbeler
Publisher: PEARSON
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Chapter 11.7, Problem 31P
To determine
The angle
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An acrobat is walking on a tightrope of length L
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distance of 20.0 m apart. The combined weight
of the acrobat and his balancing pole is 900 N,
and the friction between his shoes and the rope
is large enough to prevent him from slipping.
Neglecting the weight of the rope and any
elastic deformation, determine the deflection (y)
and the tension in portion AC and BC of the
rope for values of x from 0.5 m to 10 m using
0.5 m increments.
1. Determine the maximum deflection (y) in
the rope.
2. Plot tension of AC and BC vs. x (on the
same plot with x on the x-axis). Turn in the
plot and the table of x, TAC, and TBC (clearly
label each).
A
C
20.0 m
B
5. A 4000 lb block of concrete is attached by light inextensible cables to the truss in Figure 5.
Determine the force in each member. State whether each member is in tension or compression.
3
ΘΑ
D
E
cables
all dimensions in feet.
A block hangs from the end of bar AB that is 5.80 meters
long and connected to the wall in the xz plane. The bar is
supported at end A by a ball joint such that it carries only a
compressive force along its axis. The bar is supported in
equilibrium at end B by cables BD and BC that connect to
the xz plane at points C and D respectively with
coordinates given in the figure. The z components of the
moments exerted on the bar by these two cables sum to 0.
The tension in cable BD is measured to be 210 Newtons.
Input answers of zero as 0.00 to avoid an invalid answer due
to significant figures.
Determine the equivalent force and couple system acting at
A that models only the forces exerted by both cables BD
→
and BC on the bar at B. Enter your results for Feq and Meg
in Cartesian Components.
Z
D
(c, 0, d)
C
(a, 0, b).
X
A
f
m
B
y
cc 040
BY NC SA
2016 Eric Davishahl
Values for dimensions on the figure are given in the following
table. Note the figure may not be to scale.
Variable Value
a…
Chapter 11 Solutions
Engineering Mechanics: Statics & Dynamics (14th Edition)
Ch. 11.3 - Determine the required magnitude of force P to...Ch. 11.3 - Determine the magnitude of force P required to...Ch. 11.3 - The linkage is subjected to a force P = 2 kN....Ch. 11.3 - Prob. 4FPCh. 11.3 - Determine the angle where the 50-kg bar is in...Ch. 11.3 - Prob. 6FPCh. 11.3 - Use the method of virtual work to determine the...Ch. 11.3 - The scissors jack supports a load P. Determine the...Ch. 11.3 - If a force of P = 5 lb is applied to the handle of...Ch. 11.3 - Prob. 4P
Ch. 11.3 - Prob. 5PCh. 11.3 - Prob. 6PCh. 11.3 - When = 20, the 50-lb uniform block compresses the...Ch. 11.3 - Prob. 8PCh. 11.3 - The 4-ft members of the mechanism are pin...Ch. 11.3 - The thin rod of weight W rests against the smooth...Ch. 11.3 - If each of the three links of the mechanism have a...Ch. 11.3 - Prob. 12PCh. 11.3 - Prob. 13PCh. 11.3 - Prob. 14PCh. 11.3 - Prob. 15PCh. 11.3 - Prob. 16PCh. 11.3 - When = 30, the 25-kg uniform block compresses the...Ch. 11.3 - Prob. 18PCh. 11.3 - The Nuremberg scissors is subjected to a...Ch. 11.3 - The crankshaft is subjected to a torque of M = N ...Ch. 11.3 - Prob. 21PCh. 11.3 - The spring is unstretched when = 0. If P = 8 lb,...Ch. 11.3 - Prob. 23PCh. 11.3 - Prob. 24PCh. 11.3 - The dumpster has a weight W and a center of at...Ch. 11.7 - The potential energy of a one-degree-of-freedom...Ch. 11.7 - Prob. 27PCh. 11.7 - Prob. 28PCh. 11.7 - Prob. 29PCh. 11.7 - Prob. 30PCh. 11.7 - Prob. 31PCh. 11.7 - Prob. 32PCh. 11.7 - The uniform bar has a mass of 80 Kg. Determine the...Ch. 11.7 - The uniform bar AD has a mass of 20kg. If the...Ch. 11.7 - Prob. 35PCh. 11.7 - Prob. 36PCh. 11.7 - Determine me angle for equilibrium and...Ch. 11.7 - Prob. 38PCh. 11.7 - Prob. 39PCh. 11.7 - Prob. 40PCh. 11.7 - The uniform rod has a mass of 100 kg. If the...Ch. 11.7 - Prob. 42PCh. 11.7 - The buck has a mass of 20 Mg and a mass center at...Ch. 11.7 - Prob. 44PCh. 11.7 - Prob. 45PCh. 11.7 - Prob. 46PCh. 11.7 - Prob. 47PCh. 11.7 - Prob. 48PCh. 11.7 - Prob. 49PCh. 11.7 - Prob. 1RPCh. 11.7 - Prob. 2RPCh. 11.7 - The punch press consists of the ram R, connecting...Ch. 11.7 - Prob. 4RPCh. 11.7 - Prob. 5RPCh. 11.7 - Prob. 6RPCh. 11.7 - The uniform bar AB weighs 100 lb. If both spring...Ch. 11.7 - The spring attached to the mechanism has an...
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