Concept explainers
When the 100-lb block is at h = 3 ft above the cylindrical post and spring assembly, it has a speed of υ = 20 ft/s. If the post is made of 2014–T6 aluminum and the spring has the stiffness of k = 250 kip/in., determine the required minimum diameter d of the post to the nearest
Prob. 14–55
Want to see the full answer?
Check out a sample textbook solutionChapter 14 Solutions
Mechanics of Materials Plus Mastering Engineering with Pearson eText - Access Card Package (10th Edition)
Additional Engineering Textbook Solutions
Statics and Mechanics of Materials
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
Manufacturing Engineering & Technology
Vector Mechanics for Engineers: Statics and Dynamics
Fluid Mechanics: Fundamentals and Applications
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
- If the maximum allowable bending stress for the W10 * 15 structural A992 steel beam is sallow = 20 ksi, determine the maximum height h from which a 50-lb weight can be released from rest and strike the center of the beam.arrow_forward2. The block has a mass of 5.8 kg and rests on the smooth plane. Determine the unstretched length of the spring. Round to three significant figures.arrow_forwardThe 75-lb block has a downward velocity of 2 ft>s when it is 3 ft from the top of the beam. Determine the maximum bending stress in the beam due to the impact, and calculate the maximum deflection of point B. Ew = 1.9(103) ksi.arrow_forward
- The rigid bar is supported by the two short white spruce wooden posts and a spring. If each of the posts has an unloaded length of 1 m and a cross-sectional area of 600 mm2, and the spring has a stiffness of k = 2 MN >m and an unstretched length of 1.02 m, determine the vertical displacement of A and B after the load is applied to the bar.arrow_forwardA992 steel bar is subjected to the loading shown. If the cross-sectional area of the bar is 80 mm², determine the displacement of C and D.arrow_forwardIf spring is found to extend 20mm for each 2kg of mass, the defelaction of spring carrying a mass of 10kg is A)200mm B)1m C)0.1m D)10marrow_forward
- The A992 steel rod is subjected to the loading shown. If the cross-sectional area of the rod is 80 mm2, determine the displacement of B and A. Neglect the size of the couplings at B and C.arrow_forwardThe two A-36 steel bars have a thickness of 1 in. and a width of 4 in. They are designed to act as a spring for the machine which exerts a force of 4 kip on them at A and B. If the supports exert only vertical forces on the bars, determine the maximum deflection of the bottom bar.arrow_forwardThe A-36 solid steel shaft is 2 m long and has a diameter of 60 mm. It is required to transmit 60 kW of power from the motor M to the pump P. Determine the smallest angular velocity the shaft if the allowable shearstress is tallow = 80 MPa.arrow_forward
- The tugboat has a weight of 120 000 lb and is traveling Forward at 2 ft>s when it strikes the 12-in.-diameter fender Post AB used to protect a bridge pier. If the post is made from treated white spruce and is assumed fixed at the river bed, determine the maximum horizontal distance the top of thepost will move due to the impact. Assume the tugboat is rigid and neglect the effect of the water.arrow_forwardThe pipe can be assumed roller supported at its ends and by a rigid saddle C at its center. The saddle rests on a cable that is connected to the supports. Determine the force that should be developed in the cable if the saddlekeeps the pipe from sagging or deflecting at its center. The pipe and fluid within it have a combined weight of 12.5 lb>ft. EI is constant.arrow_forwardThe steel chisel has a diameter of 0.5 in. and a length of 10 in. It is struck by a hammer that weighs 3 lb, and at the instant of the impact it is moving at 12 ft>s. Determine the maximum compressive stress in the chisel, assumingthat 80% of the impacting energy goes into the chisel. Est = 29(103) ksi, sY = 100 ksiarrow_forward
- International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L