
Applied Statics and Strength of Materials (6th Edition)
6th Edition
ISBN: 9780133840544
Author: George F. Limbrunner, Craig D'Allaird, Leonard Spiegel
Publisher: PEARSON
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Question
Chapter 6, Problem 6.8P
To determine
The horizantal P required to prevent the block from sliding.
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2. Express the following complex numbers in rectangular form.
(a) z₁ = 2еjл/6
(b) Z2=-3e-jπ/4
(c) Z3 =
√√√3e-j³/4
(d) z4 = − j³
A prismatic beam is built into a structure. You can consider the boundary conditions at A and B to be
fixed supports. The beam was originally designed to withstand a triangular distributed load, however,
the loading condition has been revised and can be approximated by a cosine function as shown in the
figure below. You have been tasked with analysing the structure. As the beam is prismatic, you can
assume that the bending rigidity (El) is constant.
wwo cos
2L
x
A
B
Figure 3: Built in beam with a varying distributed load
In order to do this, you will:
a. Solve the reaction forces and moments at point A and B.
Hint: you may find it convenient to use the principal of superposition.
(2%)
b. Plot the shear force and bending moment diagrams and identify the maximum shear force
and bending moment.
(2%)
c. Develop an expression for the vertical deflection. Clearly state your expression in terms of x.
(1%)
Question 1: Beam Analysis
Two beams (ABC and CD) are connected using a pin immediately to the left of Point C. The pin acts
as a moment release, i.e. no moments are transferred through this pinned connection. Shear forces
can be transferred through the pinned connection. Beam ABC has a pinned support at point A and a
roller support at Point C. Beam CD has a roller support at Point D. A concentrated load, P, is applied
to the mid span of beam CD, and acts at an angle as shown below. Two concentrated moments, MB
and Mc act in the directions shown at Point B and Point C respectively. The magnitude of these
moments is PL.
Moment Release
A
B
с
°
MB = PL
Mc=
= PL
-L/2-
-L/2-
→
P
D
Figure 1: Two beam arrangement for question 1.
To analyse this structure, you will:
a) Construct the free body diagrams for the structure shown above. When constructing your
FBD's you must make section cuts at point B and C. You can represent the structure as three
separate beams. Following this, construct the…
Chapter 6 Solutions
Applied Statics and Strength of Materials (6th Edition)
Ch. 6 - A 150 Ib block rests on a horizontal floor. The...Ch. 6 - A 200 lb block rests on a horizontal surface. The...Ch. 6 - A tool locker having a mass of 140 kg rests on a...Ch. 6 - A body weighing 100 lb rests on an inclined plane,...Ch. 6 - For Problem 6.4 , compute the friction force F...Ch. 6 - Block A in the figure shown has a mass of 10 kg...Ch. 6 - Compute the horizontal force P required to cause...Ch. 6 - Prob. 6.8PCh. 6 - Calculate the magnitude of the force P, acting as...Ch. 6 - For the block-and-wedge system shown in Figure...
Ch. 6 - Calculate the value of the horizontal force P...Ch. 6 - Two blocks, each having a mass of 100 kg and...Ch. 6 - Calculate the force P required to move the wedges...Ch. 6 - A heavy machine is lowered into a pit by means of...Ch. 6 - Calculate the maximum weight that the person in...Ch. 6 - A flat belt passes halfway around a...Ch. 6 - A belt-and-pulley arrangement has a maximum belt...Ch. 6 - Rework Problem 6.17 for a V-belt with a 40° groove...Ch. 6 - A mass of 320 kg is prevented from falling by a...Ch. 6 - A belt is wrapped around a pulley for 180°. The...Ch. 6 - A jackscrew has a square thread with a pitch of...Ch. 6 - The mean diameter of a square-threaded jackscrew...Ch. 6 - The woodworking vise shown is designed for a...Ch. 6 - A square-threaded screw is used ii a press, shown,...Ch. 6 - For the following computer problems, any...Ch. 6 - Prob. 6.26CPCh. 6 - For the following computer problems, any...Ch. 6 - 6.28 A horizontal force of 18 lb is required to...Ch. 6 - 6.29 A 90-Ib block lying on a rough horizontal...Ch. 6 - 6.30 The tool locker of Problem 6.3 is 0.8 m by...Ch. 6 - Prob. 6.31SPCh. 6 - A 50-lb block rests on a rough inclined plane. If...Ch. 6 - If in Problem 6-32 the plane has an inclination...Ch. 6 - A 325-lb block rests on a plane inclined 25° with...Ch. 6 - A 47 lb body is supported on a plane inclined 33°...Ch. 6 - Prob. 6.36SPCh. 6 - In the figure shown, block A weighs 200 lb and...Ch. 6 - Calculate the magnitude of the horizontal force P,...Ch. 6 - In the figure shown, the coefficient of static...Ch. 6 - A 500-lb block rests on a horizontal surface, as...Ch. 6 - A ladder, 8 m long and having a mass of 25 kg,...Ch. 6 - The ladder shown is supported by a horizontal...Ch. 6 - 6.43 A 16-ft ladder weighing 62 lb (assumed...Ch. 6 - Prob. 6.44SPCh. 6 - 6.45 Compute the minimum weight of block B that...Ch. 6 - Prob. 6.46SPCh. 6 - Prob. 6.47SPCh. 6 - Prob. 6.48SPCh. 6 - Prob. 6.49SPCh. 6 - Prob. 6.50SPCh. 6 - Calculate the force P necessary to start the block...Ch. 6 - A machine having a mass of 500 kg is to be raised...Ch. 6 - 6.53 A ship may exert an estimated pull of 8000 lb...Ch. 6 - A sailor wraps a heavy rope around a bollard (a...Ch. 6 - When a large rope is wrapped twice around a post,...Ch. 6 - A band brake is in contact with drum C through an...Ch. 6 - Prob. 6.57SPCh. 6 - The mean diameter of a square-threaded jackscrew...Ch. 6 - The manually operated apple cider press shown has...
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