4. The block of 2 kg travels down the slope from rest from the position shown and strikes the spring of constant k = 2 kN/m. Determine the maximum deformation of the spring after it is struck by the block. Also determine the location of the block relative to the free end of the spring when it stops after being bounced back by the spring. The coefficient of kinetic friction between the block and surfaces is μ = 0.25. www. 2 m 2 m 4³ 3

4. The block of 2 kg travels down the slope from rest from the position shown and strikes the spring of constant k = 2 kN/m. Determine the maximum deformation of the spring after it is struck by the block. Also determine the location of the block relative to the free end of the spring when it stops after being bounced back by the spring. The coefficient of kinetic friction between the block and surfaces is μ = 0.25. www. 2 m 2 m 4³ 3

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.71P: The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If...

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The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If the force required to start the spool rotating is F = 160 lb, determine the coefficient of friction between the ground and the spool. Neglect the diameter of the spindle compared to the diameter of the spool.
2. The car, having a mass of 1000 kg, is traveling horizontally along a 20° banked track which is circular and has a radius of curvature of p = 100 m. If the coefficient of static friction between the tires and the road is us = 0.3, determine the minimum and maximum constant speed at which the car can travel without sliding down and up the slope. Neglect the size of the car. e= 20°
B k = 600 N/m A 3 !!!!!! The 1,060 kg cart B is connected to the 600 kg cart A by a spring joint. Determine the elongation in meters of the spring when the brakes are applied and all wheels slip. Consider a coefficient of friction of 0.6.
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The 5-lb packages ride on the surface of the conveyor belt as shown in (Figure 1). The coefficient of static friction between the belt and a package is 0.45. Figure 0. 6 in. 6 If the belt starts from rest and its speed increases to 2 ft/s in 2 s, determine the maximum angle so that none of the packages slip on the inclined surface AB of the belt. Express your answer in degrees to three significant figures. 0 = Submit Part B Avec b = Request Answer At what angle do the packages first begin to slip off the surface of the belt after the belt is moving at its constant speed of 2 ft/s? Neglect the size of the packages. Express your answer in degrees to three significant figures. IVE| ΑΣΦ | 41 ? vec ? O
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