EP ENGR.MECH.:DYNAMICS-REV.MOD.MAS.ACC.
14th Edition
ISBN: 9780133976588
Author: HIBBELER
Publisher: PEARSON CO
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Textbook Question
Chapter 17.3, Problem 35P
Determine its initial acceleration if a man pushes on it with a force F = 60 lb. The coefficient of kinetic friction at A and B is μk = 0.2.
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Determine the resultant stress at points P and Q.
For the notched specimen with h = 0.13 m and r =11 mm, calculate the nominal stress for F=5 kN.
F
h
F
25 mm
Please submit your answer in the units of MPa.
A tensile specimen made of hot-rolled AISI 1020 steel is loaded to point corresponding to a strain of 49%.
60
Su = 66 ksi
Stress σ (ksi)
Sy = 39 ksi
400B
Se = 36 ksi
Hot-rolled 1020 steel
20
F
0
0
10 20 30
40 50 60
70 80 90 100 110 120 130 140 150 160
Strain € (%)
0
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
Area ratio R
0.1
0.2
0.3
0.4
0.5
Area reduction A,
What value of Su is applicable to this location?
0.6
Chapter 17 Solutions
EP ENGR.MECH.:DYNAMICS-REV.MOD.MAS.ACC.
Ch. 17.1 - The rod's density end cross-sectional area. A are...Ch. 17.1 - Determine the mass of the cylinder end its moment...Ch. 17.1 - The nag has a mass m.Ch. 17.1 - Determine the radius of gyration kx. The density...Ch. 17.1 - The specific weight of the material is = 380...Ch. 17.1 - Determine the moment of inertia Iz and express the...Ch. 17.1 - Determine the moment of inertia Ix and express the...Ch. 17.1 - Defending the moment of inertia Iy and express the...Ch. 17.1 - Express the result in terms of the mass m of the...Ch. 17.1 - Determine me radius of gyration of the pendulum...
Ch. 17.1 - Determine the mass moment of inertia of the...Ch. 17.1 - Determine the moment of inertia of the solid steel...Ch. 17.1 - Determine the wheels moment of inertia about an...Ch. 17.1 - If the large ring, small ring and each of the...Ch. 17.1 - The thin plate has a hole in its center its...Ch. 17.1 - The material has a mass per unit area of 20 kg/m2.Ch. 17.1 - The block has a mass of 3 kg and the semicylinder...Ch. 17.1 - The block has a mass of 3 kg and the semicylinder...Ch. 17.1 - The material has a specific weight = 90 lb/ft3.Ch. 17.1 - Prob. 20PCh. 17.1 - Determine the location y of the center of mass G...Ch. 17.1 - The material is steel having a density of = 7.85...Ch. 17.1 - The material is steel having a density of = 7.85...Ch. 17.3 - Draw the free-body and kinetic diagrams of the...Ch. 17.3 - Draw the free-body and kinetic diagrams of the...Ch. 17.3 - Determine the acceleration of the can and the...Ch. 17.3 - If the 80-kg cabinet is allowed to roll down the...Ch. 17.3 - Determine the maximum acceleration of the frame...Ch. 17.3 - Also what is the corresponding normal reaction on...Ch. 17.3 - Determine the tension developed in the rods and...Ch. 17.3 - If it is subjected to a couple moment M = 450 N ...Ch. 17.3 - Determine how far the door moves in 25, starting...Ch. 17.3 - Determine the constant force F that must be...Ch. 17.3 - Initially at take-off the engines provide a thrust...Ch. 17.3 - If it starts from rest it causes the rear wheels...Ch. 17.3 - If the winch at B draws in the cable with an...Ch. 17.3 - Determine the greatest acceleration of the...Ch. 17.3 - Determine the internal axial, shear, and...Ch. 17.3 - If the coefficient of kinetic friction between the...Ch. 17.3 - Determine the reactions at both the wheels at A...Ch. 17.3 - Also, what is the acceleration of the cart? The...Ch. 17.3 - If it is subjected to a horizontal force of P =...Ch. 17.3 - Determine its initial acceleration if a man pushes...Ch. 17.3 - Determine the initial acceleration of a desk when...Ch. 17.3 - Determine the maximum force P that can be applied...Ch. 17.3 - Determine the maximum force P that can be applied...Ch. 17.3 - If it is released from rest, determine the...Ch. 17.3 - It is carried on a truck as shown. Determine the...Ch. 17.3 - It is carried on a truck as shown. If the truck...Ch. 17.3 - Determine the smallest acceleration that will...Ch. 17.3 - The coefficients of static and kinetic friction...Ch. 17.3 - If the collar is given a constant acceleration of...Ch. 17.3 - If it is supported by the cable AB and hinge at C,...Ch. 17.3 - If it is supported by the cable AB and hinge at C,...Ch. 17.3 - If the acceleration is a = 20 ft/s2, determine the...Ch. 17.3 - If h = 3 ft, determine the snowmobiles maximum...Ch. 17.3 - If the carts mass is 30 kg and it is subjected to...Ch. 17.3 - The uniform rod BC has a mass of 15 kg.Ch. 17.3 - If the acceleration of the truck is at = 0.5 m/s2,...Ch. 17.3 - If the angle = 30, determine the acceleration of...Ch. 17.3 - Determine the largest initial angular acceleration...Ch. 17.3 - Determine the initial friction and normal force of...Ch. 17.3 - Determine the largest initial angular acceleration...Ch. 17.3 - Determine the normal force NE, shear force VE, and...Ch. 17.4 - If the wheel starts from rest determine its...Ch. 17.4 - Determine the angular velocity of the disk when t...Ch. 17.4 - Determine the tangential and normal components of...Ch. 17.4 - Determine the tangential and normal components or...Ch. 17.4 - Determine the horizontal and vertical components...Ch. 17.4 - If the rod has a counterclockwise angular velocity...Ch. 17.4 - If the wheel is subjected to a moment M = (5t) N ...Ch. 17.4 - Determine its initial angular acceleration and the...Ch. 17.4 - If it is released from rest when = 0. determine...Ch. 17.4 - If it is released from rest in the position shown,...Ch. 17.4 - The reel rests on rollers at A and B and has a...Ch. 17.4 - The spring has a stiffness k = 5 lb ft/rad, so...Ch. 17.4 - The spring has a stiffness k = 5 lb ft/rad, so...Ch. 17.4 - If a force of F=(142)N, where is in radians, is...Ch. 17.4 - If no slipping occurs between them determine the...Ch. 17.4 - Show that IG may be eliminated by moving the...Ch. 17.4 - Treat the beam as a uniform slender rod.Ch. 17.4 - It consists of a 100-kg steel plate AC and a...Ch. 17.4 - It is pin supported at both ends by two brackets...Ch. 17.4 - It is pin supported at both ends by two brackets...Ch. 17.4 - Determine its angular velocity when t = 2 s...Ch. 17.4 - If it is placed on the ground for which the...Ch. 17.4 - Compute the time needed to unravel 5 m of cable...Ch. 17.4 - If the rotor always maintains a constant clockwise...Ch. 17.4 - It is originally spinning at = 40 rad/s. If it is...Ch. 17.4 - It is pin supported at both ends by two brackets...Ch. 17.4 - Disk E has a weight of 60 lb and is initially at...Ch. 17.4 - If the cylinders are released from rest, determine...Ch. 17.4 - If the pulley can be treated as a disk of mass 3...Ch. 17.4 - If the pulley can be treated as a disk of mass M,...Ch. 17.4 - Assume that the board is uniform and rigid, and...Ch. 17.4 - At the instant the rolor is horizontal it has an...Ch. 17.4 - Determine the initial tending moment at the fixed...Ch. 17.4 - Movement is controlled by the electromagnet E,...Ch. 17.4 - If it is rotating in the vertical plane at a...Ch. 17.4 - Determine the angular acceleration of the rod and...Ch. 17.4 - Determine the horizontal and vertical components...Ch. 17.4 - Determine the horizontal and vertical components...Ch. 17.5 - If the powder burns at a constant rate of 20 g/s...Ch. 17.5 - Determine the acceleration of the bars mass center...Ch. 17.5 - Determine the acceleration of its mass center and...Ch. 17.5 - When the wheel is subjected to the couple moment,...Ch. 17.5 - Determine the angular acceleration of the sphere...Ch. 17.5 - If the couple moment is applied to the spool and...Ch. 17.5 - If the rod is released from rest at = 0,...Ch. 17.5 - rolls without slipping, show that when moments are...Ch. 17.5 - If it is initially at rest and is subjected to a...Ch. 17.5 - The uniform 150-lb beam is initially at rest when...Ch. 17.5 - If the coefficients of static and kinetic friction...Ch. 17.5 - If the coefficients of static and kinetic friction...Ch. 17.5 - If the coefficients of static and kinetic friction...Ch. 17.5 - Solve Prob.17-96 if the cord and force P = 50 N...Ch. 17.5 - If the coefficients of static and kinetic friction...Ch. 17.5 - If a horizontal force of F = 80 N is applied to...Ch. 17.5 - If slipping does not occur, determine the rings...Ch. 17.5 - Neglect the thickness of the ring.Ch. 17.5 - Using a collar of negligible mass, its end A is...Ch. 17.5 - If the pin is connected to a track which is giver...Ch. 17.5 - Assume the roller to be a uniform cylinder and...Ch. 17.5 - Also, find the angular acceleration of the roller....Ch. 17.5 - Determine the bars initial angular acceleration...Ch. 17.5 - Solve Prob.17-106 if the roller is removed and the...Ch. 17.5 - If the coefficient of static friction at A is s, =...Ch. 17.5 - If the truck has an acceleration of 3 m/s2...Ch. 17.5 - A cord is wrapped around the periphery of the disk...Ch. 17.5 - If the coefficient of static friction at A is s =...Ch. 17.5 - At this instant the center of gravity of the...Ch. 17.5 - Determine the initial angular acceleration of the...Ch. 17.5 - Determine the time before it starts to roll...Ch. 17.5 - If they are released from rest determine the...Ch. 17.5 - Determine the normal force which the path exerts...Ch. 17.5 - If it is originally at rest while being supported...Ch. 17.5 - If the pin support at A suddenly fails, determine...Ch. 17.5 - Determine its angular acceleration.Ch. 17.5 - If the coefficient of kinetic friction between the...Ch. 17.5 - Determine the normal reactions at each of the...Ch. 17.5 - Determine the internal axial force Ex, shear force...Ch. 17.5 - Determine the maximum acceleration it can have if...Ch. 17.5 - The roil rest against a wall for which the...Ch. 17.5 - Determine the magnitude of force F and the initial...Ch. 17.5 - Compute the reaction at the pin O just after the...Ch. 17.5 - if the coefficient of kinetic friction at the...Ch. 17.5 - The coefficient of kinetic friction is A = 0.3.
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