Concept explainers
The lug nut on the wheel of the automobile is to be removed using the wrench and applying the vertical force of F = 30 N at A. Determine if this force is adequate, provided 14 N · m of torque about the x axis is initially required to turn the nut. If the 30-N force can be applied at A in any other direction, will it be possible to turn the nut?
Learn your wayIncludes step-by-step video
Chapter 4 Solutions
Engineering Mechanics: Statics, Student Value Edition (14th Edition)
Additional Engineering Textbook Solutions
Mechanics of Materials
Applied Statics and Strength of Materials (6th Edition)
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
Mechanics of Materials (10th Edition)
Applied Fluid Mechanics (7th Edition)
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
- The 1200-lb homogeneous block is placed on rollers and pushed up the 10 incline at constant speed. Determine the force P and the roller reactions at A and B.arrow_forwardBoth pulleys are fixed to the shaft and as the shaft turns with constant angular velocity, the power of pulley A is transmitted to pulley B. Determine the horizontal tension T in the belt on pulley B and the x, y, z components ofreaction at the journal bearing C and thrust bearing D if θ = 0°. The bearings are in proper alignment and exert only force reactions on the shaft.arrow_forwardThe cylinder has a mass of 30 kg and is mounted on an axle that is supported by bearings at A and B. If the axle is turning at 40 rad/s (direction see figure) determine the vertical components of force acting at the bearings at this instantarrow_forward
- The Engine Part has a weight of 400 N. Find components of this force (which is acting downward at point B) along members BA and BCarrow_forwardIf F=1kN,the magnitude of the vertical reaction force developed at the point B?arrow_forwardHow much work is done by the force in the spring when the slender rod rotates clockwise about the fixed pin support at O from the vertical position (where AB is horizontal) to the horizontal position? The spring has a stiffness of k = 125 N/m and an unstretched length of 0.15 m. Take d1= 0.29 m and d2= 0.85 m. Choose the correct answer. a) 94.9 Joule b) 99.9 Joule c) -99.9 Joule d) 0 Joule e) -94.9 Joulearrow_forward
- The smooth disks D and E have a weight of 220 lb and 100 lb, respectively. If a horizontal force of P = 220 lb is applied to the center of disk E, determine the normal reactions at the points of contact with the ground at A, B, and C.arrow_forwardin the pulley system and the diagram above, assume that the bearings at oh and C are properly aligned and smooth and that T2 =30 N all dimensions in millimeters and the belt tensions are all tangential to the pulleys a. If the shaft runs at a constant speed, determine the tension T1 b draw a free body diagram of the shaft and determine the reactions at bearing sea in terms of the components along the Y and Z axis. Assume neither bearing and oh or see produces an axial thrustarrow_forwardThe pumping unit is used to recover oil. When the walking beam ABC is horizontal, the forceacting in the wireline at the well head is 250 lb. Determine the torque M which must beexerted by the motor in order to overcome this load. The horse-head C weighs 60 lb andhas a center of gravity at Gc. The walking beam ABC has a weight of 130 lb and a centerof gravity at GB, and the counterweight has a weight of 200 lb and a center of gravity atGW. The pitman, AD, is pin connected at its ends and has negligible weight.arrow_forward
- Determine the horizontal and vertical components of force that the pins at A and B exert on the frame. 4.1 The magnitude of the horizontal component Ax at the hinged support A is Blank 1 kN. 4.2 The magnitude of the vertical component Ay at the hinged support A is Blank 2 kN. 4.3 The magnitude of the horizontal component Bx at the hinged support B is Blank 3 kN. 4.4 The magnitude of the vertical component By at the hinged support B is Blank 4 kN.arrow_forwardThe jib crane is designed for a maximum capacity of 7 kN, and its uniform I-beam has a mass of 240 kg. Plot the magnitude R of the force on the pin at A as a function of x through its operating range of x = 0.2 m to x = 3.7 m. On the same set of axes, plot the x- and y-components of the pin reaction at A. Do these plots on a separate piece of paper. Then answer the following questions in Wiley Plus as a check for your work.(a) What is the value of R when x = 1.9 m?(b) What is the value of R when x = 3.2 m?(c) Determine the minimum value of R and the corresponding value of x.(d) For what value of R should the pin at A be designed?arrow_forwardFind the force F that must be applied at the handle to produce a clamping force of 75 lbs at E, given:L1 = 8 in, L2 = 2.25 in, L3 = 1 in, L4 = 10 in, θ = 30 °arrow_forward
- International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L