Springs Definition and 678 Threads

Homework Statement A particle of mass m= 1.18kg is attached between two identical springs on a frictionless, horizontal tabletop. Both springs have spring constant k and are initially unstressed, and the particle is at x=0. a) The particle is pulled a distance x along a direction perpendicular...

Statics Springs "Design Problem" Homework Statement Here's a problem I've been very determined to figure out, but I can't. I attached the picture. This single problem is 5% of my grade, so I'd appreciate any help! A plate storage system for a self-serve salad bar in a restaurant is shown. As...

Finding Acceleration of Gravity for Springs Without a Given "K" Homework Statement What I need is to gather data for the period, displacement, and mass of a certain object put on a spring. Later, I was asked to find the gravity--however I wasn't given a spring constant and I'm left on my...

Homework Statement https://aapt.org/physicsteam/2010/upload/2009_F-maSolutions.pdf #16 Homework Equations ω = √(k/m) The Attempt at a Solution So in this problem, I thought that given two identical masses on each side (that exert let's say Force F each), the net tension is not 2F...

Homework Statement see the 2 image attachments. Homework Equations law of conservation of energy Fs = -kx Eg = mgh Ek = 1/2mv^2 Es = 1/2kx^2 The Attempt at a Solution i have no idea.

Homework Statement Homework Equations The Attempt at a Solution When i do the matrix multiplication of the 2x2 and 2x1 matrix, I get 2 conflicting solutions that don't match at all! So which one do i take to find ratio of X and Y?

I have to write a lab report on coil springs and what characterizes them. So, I decided to use several different coil springs. I hanged different weights on them. I proved Hooke's law. But, I think there is something missing. The teacher asked me to say what characterizes springs. I don't...

Please help with this question, and if possible, please explain why. If one spring is compressed 5 inches by a 10 pound weight. How much is two identical springs in series compressed by the same weight (total compressed distance)?

Hi. I have a mass between 2 springs. See attachment. Both springs are compressed. I'm trying to convince myself that the springs act in parallel. I've done the calculations and it checks out ok, but I'm struggling to visualise this. In my mind, if an external force is applied to the mass to...

I have two springs, they are connected in series. I have the load-deflection curves for each spring. How can I get a combined load-deflection curve for the two springs if placed in series? Thanks Lovi

Homework Statement A perfectly elastic spring is attached to the ceiling and a mass m is hanging from the spring. he mass is in equilibrium when the spring is stretched a distance x(o). The mass is carefully lifted and held at rest in the position where the string is nether stretched nor...

Homework Statement A) Explain what will happen if I drop a spring at equilibrium. B) Explain what will happen if I drop a Hoberman ball. C) Explain what will happen if I drop the spring in a falling elevator (in free fall). Homework Equations T=kx [b]3. The Attempt at a Solution...

Homework Statement http://img854.imageshack.us/img854/1828/physicssprings.png Two identical masses on a frictionless surface are attached to two walls by springs, each with a force constant k1, and to each other by a spring with force constant k2. (See figure, where system is at...

Homework Statement Homework Equations Hooke's law. F = kΔx ω = sqrt(k/m) The Attempt at a Solution For part A F = mg = kΔx k = mg/Δx g is a constant so the spring constant is proportional to the mass and inversely proportional to the change in distance that the spring...

Homework Statement The unstretched length of a spring is 1.5 ft. What friction coefficient,μ, at A and C is needed so that P=500 lb would tend towards points A and C sliding outward? Given spring constant k=70 lb/ft Diagram- Inverted triangle such that height is 4 ft to point B. Force P...

There is a statement in my book i can't really understand. "To stretch a spring, we must do work. We apply equal and opposite forces to the ends of a spring and gradually increase the forces. We hold the left end stationary, so the force we apply at this end does no work.The force at the moving...

Homework Statement Homework Equations T1 + V1 = T2 + V2 T = kinetic energy V = potential energy The Attempt at a Solution I am only confused about how to get T2. Here is how the answer key gets T2: I don't get why Va = Vb = 0. The wheels have some velocity so it doesn't...

Homework Statement The brake linkage for a truck is actuated by hydraulic cylinder AB. Cylinder AB, springs CD, EF, and GH are the slotted tracks are all horizontal. The slotted tracks are frictionless. If the cylinder AB exerts a tensile force of 12 kips, determine the deflection d and the...

A mass of 10kg hangs from an ideal (massless) spring from the ceiling. The mass and spring are in static equilibrium, so there is no motion. If the spring has a spring constant k=1000N/m and g = 10 m/s/s, what is the (potential) energy stored in the spring? PE = mgh and KE(of spring)=...

Homework Statement When a 4.00-kg object is hung vertically on a certain light spring that obeys Hooke’s law, the spring stretches 2.50 cm. If the 4.00-kg object is removed, (a) how far will the spring stretch if a 1.50-kg block is hung on it? (b) How much work must an external agent do to...

Homework Statement Two air blocks with masses 224 g and 130 g are equipped with identical springs (k = 2490 N/m). The blocks move toward each other with identical speeds of 1 m/s on a horizontal air track and collide, compressing the springs. Find the maximum compression of the spring...

Homework Statement Two particles, each of mass M, are hung between three identical springs. Each spring is massless and has spring constant k. Neglect gravity. The masses are connected as shown to a dashpot of negligible mass. The dashpot exerts a force of bv, where v is the relative...

I know this problem has been asked before but i am trying to understand. Homework Statement A 2.00-kg block is pushed against a spring with negligible mass and force constant k = 400 N/m, compressing it 0.220 m. When the block is released, it moves along a frictionless, horizontal surface and...

Hello guys I'm desperately trying to understand the solution of this assignement . What would be the differential equation og this Simple Harmonic Motion when you have a mass m suspended to 2 springs in series ?

Homework Statement Three identical 6.00kg masses are hung by three identical springs, as shown in the figure. Each spring has a force constant of 8.50kN/m and was 11.0cm long before any masses were attached to it. How long is each spring when hanging as shown? (Hint: First isolate only the...

Hi all, I was wondering is you could help me with this springs question. We've only done springs hanging from a fixed support above being stretched, but now I've got a question where the spirng is being compressed. Homework Statement So, here's some basic info about the question...

Spring force always creates a doubt in my mind... My question is that.. When two masses say m1 and m2 are connected to each other via a massless spring... m2 is ahead of m1... if we push the block m1 towards m2 ..say with a force F..then what exactly will happen?? What i think is that...

Homework Statement Two springs each have spring constant k and equilibrium length (L). They are both stretched a distance (L) and attached to a mass m and two walls. At a given instant, the right spring constant is somehow magically changed to 3k (the relaxed length remains L). what is the...

Homework Statement The problem is in the attachment Homework Equations F=-kx k1x1=k2x1 The Attempt at a Solution I got as my answer Keq= (k1k2)/(k1+k2) i just wanted to see if i had the right idea or no.

Hooke's law describes a certain light spring of unstretched length 37.0 cm. When one end is attached to the top of a door frame and a 8.00-kg object is hung from the other end, the length of the spring is 40.5 cm. (a) Find its spring constant. (b) The load and the spring are taken down. Two...

Homework Statement A block of mass m rests on a plane inclined at an angle θ with the horizontal. A spring with force constant k is attached to the block. The coefficient of static friction between the block and plane is μs. The spring is pulled upward along the plane very slowly. What is the...

This is a problem I've been trying to solve for quite some time now. Any help would be appreciated. Homework Statement When a person with the mass of 105kg sits in a car, the body of the car descends by 2,5cm in total. In the car there are four shock absorbers filled with oil and a spring...

If you take a piece of steel wire and pull it with your fingers it is very difficult to stretch. However, if you coil that steel wire around a pencil it now becomes very easy to stretch. Why is a coiled wire (i.e.- a spring) really easy to stretch or squeeze but the same piece of metal, in the...

Homework Statement The springs BA and BC each have a stiffness of 500N/m and an unstretched length of 3m. Determine the displacement d of the cord from the wall when a force F = 175N is applied to the cord. Homework Equations F=ks ƩFx=0 ƩFy=0 The Attempt at a Solution This is as...

First of all, my question isn't completely unrelated to a homework question. I know how to answer that question using definitions in the book and mechanically get to the end. But I wanted to start from basic principles and arrive at the same answer. This lead to a contradiction which sent me on...

Homework Statement The first problem I am having trouble with is as follows: A child pushes a 40kg sled across the ice at a constant speed. If μk = 0.05 calculate the force applied to the sled. Homework Equations I know that f=\muFN The Attempt at a Solution I know that the...

G'day I have an assignment to do where I analyse the bio-mechanics of long jump. I figured that I could possibly use a spring as an analogy of what goes on in the foot at take-off. The Achilles Tendon acts like a spring. However, I'm not sure if impulse explains why springs jump to high...

Hello I am using an rubber suspension component from Rosta, and want to calculate the deflection over a range of weights acting on a lever attached to the rubber suspension units. HOw do I convert static weight to Nm of force for determining the deflection of the units? thanks here's...

Hi, I am repeating first year exams and would really appreciate some help with my study. Just can't seem to get my head around this problem. Homework Statement Consider two identical ideal springs with a mass m attached which are harmonically oscillating out of phase relative to each...

I know that Young's modulus for a spring is Y= K*L/A where K: is the stiffness of the spring L: the original length of the spring A: the cross sectional area How does this formula change in the case of continuously distributed springs over a ring chain of radius R and a...

Homework Statement What is the effective force constant of 2 springs which are connected in series? What is the general relationship for n springs connected in series? Homework Equations im not sure if i should use or is the formula for a series circuit also relevant? The...

Homework Statement So there are 4 masses in a line. They are connected by 3 springs between them, denoted by k_12 & l_12 (spring coefficient + natural extension length), k_23 & l_23, etc. Homework Equations Write down the f = ma equations of motion for all 4 masses. The Attempt at...

Homework Statement I have trouble determining the system of forces in systems with strings like the following: Homework Equations The Attempt at a Solution My guess is it is: x1=L/3 x2=2L/3 mass 1: -kx1+k(x2-x1)=m1a1 mass 2: -k(x2-x1)+kx1=m2a2 I'm not sure...

Homework Statement If an object is held by two springs, one on either side, then is it in series or parallel? Homework Equations I know that the equivalent spring stiffness is given by f/x=k, and that the force must be the same if the spring constant of each individual spring is the same...

Homework Statement http://i.imgur.com/0gexJ.png Homework Equations F=kx (Hooke's Law), ƩFy=0 The Attempt at a Solution I drew a free-body diagram for each block. For block A, I get the equilibrium equation: Fa = (10kg)(9.81ms^-2) = 98.1N = kx_a x_a = 300mm-250mm = 50mm k = 1.962kN/m For block...

-------------------------------- Question: -------------------------------- A 1.6 kg block is pushed into a spring with spring constant of 1.0 x 10^3 N/m. The spring is compressed a distance of 2.0 cm [0.02m], and the block is released from rest in the horizontal direction. (a) Calculate...

Hey all, I am a little confused on this, I was trying to study and these two questions came up... I guess i am confused, I don't know the solutions and I want to know which it is and why... 1. A helium balloon is observed to rise up into the air at the front of the classroom, and is only...

Homework Statement You are tasked to reduce the vibrations of of an old air conditioning unit through the structure of a building. To do this you intend to mount the fan unit on 4 free-standing spring isolators with a non skid base. By choosing the appropriate springs and configuration you...

Question: The flat circular disc rotates about a vertical axis through O with a constant angular velocity of 240rpm. Prior to rotation, each of the 0.5kg sliding blocks has the position x=25mm with no force in its attached spring. Each spring has a stiffness of 400N/m, Neglect any friction...

Homework Statement The flat circular disc rotates about a vertical axis through O with a constant angular velocity of 240rpm. Prior to rotation, each of the 0.5kg sliding blocks has the position x=25mm with no force in its attached spring. Each spring has a stiffness of 400N/m, Neglect any...