International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN: 9781305501607
Author: Andrew Pytel And Jaan Kiusalaas
Publisher: CENGAGE L
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Textbook Question
Chapter 3, Problem 3.4P
The four forces shown act on the rollers of an in-line skate. Determine the equivalent force-couple system, with the force acting at O (the ankle joint of the skater).
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(a) Replace the force system shown with a force-couple system with the force acting at point O. (b) Determine the wrench that is equivalent to this force system.
Find the coordinates of the point where the axis of the wrench crosses the xy-plane.
200 lb
5 ft
250 lb
300 lb
2 ft-
300 lb
200 lb
I'm only getting Mb incorrectly...can Mb be looked into?
While cutting a piece of paper, a person exerts the two indicated forces on a paper cutter. Reduce the two forces to an equivalent
force-couple system at corner O and then specify the coordinates of the point Pin the x-y plane through which the resultant of the
two forces passes. The cutting surface is 20" x 20".
8 lb
25 lb
11"
8"
Chapter 3 Solutions
International Edition---engineering Mechanics: Statics, 4th Edition
Ch. 3 - Determine which of the force systems in (b)...Ch. 3 - Replace the force system acting on the beam by an...Ch. 3 - Replace the force system with an equivalent...Ch. 3 - The four forces shown act on the rollers of an...Ch. 3 - Replace the three forces with an equivalent...Ch. 3 - The force system acting on the machine part is...Ch. 3 - The three forces are perpendicular to the...Ch. 3 - Replace the three forces acting on the...Ch. 3 - When the three forces acting on the...Ch. 3 - Represent each of the force systems with a...
Ch. 3 - A worker applies the forces P=8i+10jlb and Q=8ilb...Ch. 3 - When the three forces are replaced by an...Ch. 3 - Replace the two forces and a couple acting on the...Ch. 3 - The shaft-and-pulley assembly ABCD is driven by...Ch. 3 - Replace the force and the couple with an...Ch. 3 - Determine the resultant force R and its line of...Ch. 3 - The 3200-1b weight is supported by two cables....Ch. 3 - The resultant of the three concurrent forces...Ch. 3 - The overhead electric hoist C rides along a track...Ch. 3 - Determine the resultant of the two forces and the...Ch. 3 - Determine the resultant of the force system shown.Ch. 3 - Determine the resultant of the three forces if (a)...Ch. 3 - Determine the resultant of the force system acting...Ch. 3 - Determine the resultant of the forces shown.Ch. 3 - The resultant of the three forces is a force R...Ch. 3 - The resultant of the four belt tensions and the...Ch. 3 - The resultant of the three forces shown is a...Ch. 3 - The resultant of the three forces is the force...Ch. 3 - The bar AB, which is inclined at the angle to the...Ch. 3 - The values of Fz,Mx, and My for three force...Ch. 3 - State whether the resultant of each force system...Ch. 3 - Determine the resultant of the three cable...Ch. 3 - The resultant of the three cable tensions acts...Ch. 3 - The resultant of the three forces acting along the...Ch. 3 - The resultant of the four forces that act on the...Ch. 3 - Determine the resultant R of the three forces...Ch. 3 - Find the resultant of the three forces acting on...Ch. 3 - The resultant of the forces P1,P2, and the couple...Ch. 3 - Find the resultant of the two forces and the...Ch. 3 - Determine the resultant of the force system acting...Ch. 3 - The wrench shown is the resultant of a...Ch. 3 - Determine the resultant of the four forces.Ch. 3 - The force-couple system acting at O is equivalent...Ch. 3 - The force-couple system consists of the force...Ch. 3 - (a) Replace the force system shown by an...Ch. 3 - During a storm, wind exerts a pressure of 110N/m2,...Ch. 3 - Water pressure acting on the vertical wall of the...Ch. 3 - Determine the resultant of the line load acting on...Ch. 3 - Determine the resultant of the line load acting on...Ch. 3 - Determine the resultant of the line loads acting...Ch. 3 - Find the resultant of the distributed load acting...Ch. 3 - Determine the resultant of the uniformly...Ch. 3 - The figure shows the water pressure acting on the...Ch. 3 - The water pressure acting on a masonry dam varies...Ch. 3 - The concrete pier is subjected to soil pressure...Ch. 3 - Find the resultant of the three forces acting on...Ch. 3 - The resultant of the force system shown is a...Ch. 3 - Determine the resultant of the three forces acting...Ch. 3 - The five forces act at end A of the boom....Ch. 3 - Find the resultant of the distributed load acting...Ch. 3 - Determine the resultant of the line loads acting...Ch. 3 - Replace the force system shown with an equivalent...Ch. 3 - The center of gravity of the 30-lb square plate is...Ch. 3 - Determine the resultant of the force system shown.Ch. 3 - Find the x- and y-coordinates of the point where...Ch. 3 - Replace the force system acting on the pipe with...Ch. 3 - Replace the coplanar force system that acts on the...Ch. 3 - Determine the magnitude of the resultant of the...Ch. 3 - Determine the wrench that is equivalent to the...Ch. 3 - The resultant of the three cable tensions acting...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- The figure shows one-half of a universal coupling known as the Hooke's joint. The coupling is acted on by the three couples shown: (a) the input couple consisting of forces of magnitude P, (b) the output couple C0, and (c) the couple formed by bearing reactions of magnitude R. If the resultant of these couples is zero, compute R and C0 for P=750lb.arrow_forwardThe force-couple system acting at O is equivalent to the wrench acting at A. If R=600i+1400j+700klb and |C|=1200lbft, determine CR.arrow_forwardThe two forces of magnitude F=30kN form a couple. Determine the corresponding couple-vector.arrow_forward
- The force-couple system consists of the force R=250i+360j400kN and the couple-vector CR=1200i+750j+560kNm. Determine the equivalent wrench and find the coordinates of the point where the axis of the wrench crosses the xy-plane.arrow_forwardThe trapdoor is held in the horizontal plane by two wires. Replace the forces in the wires with an equivalent force R that passes through point A, and determine the y-coordinate of point A.arrow_forwardThe arm ABCD of the industrial robot lies in a vertical plane that is inclined at 40 to the yz-plane. The arm CD makes an angle of 30 with the vertical. A socket wrench attached at point D applies a 52-lb ft couple about the arm CD, directed as shown. (a) Find the couple-vector that represents the given couple. (b) Determine the moment of the couple about the z-axis.arrow_forward
- The wrench shown is the resultant of a force-couple system with the force acting at point O. Determine the force and the couple of the original system. Use F=6i+8j+5kkN and C=18i+24j+15kkNm.arrow_forwardThe 1800lbin. couple is applied to member DEF of the pin-connected frame. Find the internal force systems acting on sections 1 and 2.arrow_forwardTo move the oil drum, the resultant of the three forces shown must have a magnitude of 500 N. Determine the magnitude and direction of the smallest force F that would cause the drum to move.arrow_forward
- When the three forces are replaced by an equivalent force-couple system with the force at point O, the couple vector CR is directed parallel to the x-axis. Determine F and the resultant force-couple system.arrow_forwardThe tensions in the cables supporting the pole are T1=T2=T3=60kN. Replace the cable tensions with an equivalent force-couple system with the force acting at O. Express your answer in vector form.arrow_forwardExample Four tugboats are us ed to bring an ocean liner to its pier. Each tugboat exerts a 5000-lb force in the direction shown. Determine the equivalent force-couple system at the foremast O. Ako determine the angle the resultant force makes with the horizontal as well as the direction of rotation of the moment. 60 3 100 100 70 ft ft 1 50 ft 90 ft 100 - 200 ft ft ft 110 ft 45°arrow_forward
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