The springs shown in the figurehave spring constants of k-10 N/m. Whena current is established through the wire asshown, the magnetic force on the wirecauses it to compress the springs by 1.0 cm.What is the current,will need to include a free-body diagram inyour answer.F20 cmAit, youwww.B=0.5T

Answered: The springs shown in the figure have…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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There is a beam as shown in the figure below, in which points C, E and G are roller bearings (Roller), point B is hinge bearings (Hinge), and points B and F are internal connections (Pin), this beam is subjected to two forces in total : 1.2 kips/ft uniform live load (Live Load) and 2 kips/ft uniform distribution dead load (Dead Load). (c) What is the maximum possible reaction force of the support under the action of the two forces? Appear at that point? Tip: The distribution position of the live load can be appropriately selected, and the dead load is the self-weight of the structure itself, so the whole beam is evenly distributed.
Question 3: Determine the required length of cord AC in figure, so that the 12 kg lamp can be suspended in the position shown. The undeformed length of spring AB is l'AB= 0.75 m, and the spring has a stiffness of KAB=400 N/m. Solution3: 3m K-400 N/m +
The assembly shown consists of a flywheel, a counterweight, and a bolt that attaches the counterweight to the flywheel. The flywheel is uniform with mass per area of 2.25 g/mm2 and has a 40 mm diameter hole as shown. Determine the mass mc of the counterweight so that the center of mass of the assembly is at point O. The counterweight is attached to the flywheel by a bolt with mass mg=800 g that is screwed into a 10 mm diameter hole that passes completely through the flywheel. (Round the final answer to four decimal places.) flywheel 40 mm 100 mm 50 mm counterweight and bolt 45 mm. mc.mB The mass mc of the counterweight is 9
The uniform 42-lb slender rod is subjected to a couple moment of M = 100 lb · ft. (Figure 1) Figure 1 of 1 M=100 lb-ft 5 ft
The device shown is a part of an automobile seat-back-release mechanism. The part is subjected to the 5.4-N force exerted at A and a 200-N-mm restoring moment exerted by a hidden torsional spring. Determine the y-intercept of the line of action of the single equivalent force. Your answer will be positive if the intercept is above O and negative if below O. 20 mm 42 mm 200 N·mm F = 5.4 N 20°
3. The 2kg ball is attached to 1.2 m light string, making a simple pendulum. It is displaced angle 45 degrees from the vertical and released at t=0s. Directly below the pivot of the pendulum is a 2kg box, attached to a spring of constant k=0.4N/m on a frictionless, horizontal surface. When the boll collides with a box, the boll disconnects from the string and sticks to the box. (a) At what time will the spring first reach its maximum compression? (b) Find the amplitude of the spring oscillations. α
4. A 10-kg cylinder is suspended by the frictionless and massless spring-pulley system in Figure 4 (the ring that connects the springs has negligible mass). Each spring has a rest (unstretched) length of 1 m. Find the set of spring stiffnesses KAD, KAB, and KAC that keeps this 10-kg cylinder in static equilibrium. KAD 2 m 2 m A KAB KAC 3 m- B C 4 m 3 m Figure 4 A spring-pulley system holding a cylinder in static equilibrium.
The particle of mass m = 2.3 kg is attached to the end of the light rigid bar of length L = 0.83 m. The system is released from rest while in the horizontal position shown, at which the torsional spring is undeflected. The bar is then observed to rotate 45° before stopping momentarily, (a) Determine the value of the torsional spring constant kr. (b) For this value of kr, determine the speed vof the particle when e = 25°. kT Part 1 Position 1 is the horizontal orientation shown in the figure. Position 2 is the orientation when e- 45. Find the kinetic energy in positions 1 and 2. Answers: T1- kg m²/s2 T2- kg m²/s? Answers: (a) ky = i Nem/rad (b) m/s
Determine the magnitude and direction of the resultant forces system shown in Figure. (use component method) 100 N 150 233 80 N 100 N X
Consider the system in (Figure 1). Figure k = 5 lb/in. 1 ft = 1/2x² 1 of 1 Part A Determine the smallest amount the spring at B must be compressed against the 0.3-1b block so that when the block is released from B it slides along the smooth surface and reaches point A. Express your answer in inches to three significant figures. x = Submit Provide Feedback - ΑΣΦ Request Answer vec ? in. Next >
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