Springs Definition and 651 Threads

I came across an objective question on the topic 'Springs in series and parallel' .. Have i asnwered it correctly? Q. A Force of 5Kg compresses 2 springs in series by 10 cm. What will be the compression when the same force acts on the same 2 springs but when the springs are in parallel...

1. An 8-kg plunger is released from rest in the position shown and is stopped by the two nested springs; the constant of the outer spring is k1 = 3kN/m and the constant of the inner spring is k2 = 1-kN/m. If the maximum deflection of the outer spring is observed to be 150mm, determine the height...

I ran some simulations with a two mass-three springs oscillator. I found that one mass would oscillate for a while and then almost stop. When that happened the other would start moving back and forth. Is there a way I can predict at what rate the masses will exchange energy?

please help, homework trouble, springs and ocilatory motion! Homework Statement The position of a an air-track cart that is oscillating on a spring is given by (16.5cm)cos[(15.0s-1)t]. At what value t after t=0 is the cart first located at x=4.6 cm? Homework Equations x=Acos[(angular...

"Google maps" is great! I can get directions from home to anywhere in the world. Step 29 might be fun...

This is a good one. We all know that in an ideal gas, there is no isothermal potential energy stored when you do work on the gas. Compress the gas: all the work appears as heat, and when you cool to ambient, it's all gone. Compressed ideal gas stores no work EXCEPT as heat. Now, less well...

Homework Statement A block with mass M = 5.5 kg rests on a frictionless table and is attached by a horizontal spring (k = 1.5E2 N/m) to a wall. A second block, of mass m = 1.32 kg, rests on top of M. The coefficient of static friction between the two blocks is 0.36. What is the maximum...

I was just going through the derivation for the equivalent spring constant of two springs (of different stiffness) connected in series, and I realized that there's one thing I don't understand. In the process of this derivation, it is necessary to write down the net force acting on the point...

Help concerning springs. A 2.00 kg block is attached to a spring of force constant 560 N/m as in Figure. The block is pulled 5.95 cm to the right of equilibrium and released from rest. (a) Find the speed of the block as it passes through equilibrium if the horizontal surface is...

i added a picture of the problem! when the body is at point A the spring is in relaxed status. it lengths in relaxed statues is 0.6m then a power P =20N is pulling the body to point B AB=0.25m i was asked what is his speed when it reaches point B so i made an equation that the...

A 2 kg block hangs from a spring. A 253g body hung below the block stretches it a further 2.5cm. What's the spring constant? Use g=9.8N/kg. Calculate the value to 1 decimal place and use N/m as your unit. AND A 1.8kg block hangs from a spring. A 221g body hung below the block...

A wingless fly of mass m sits on top of a platform of mass M supported by a spring of constant k. At time t the fly decides to jump upwards and by doing so, reaches a maximum altitude of 2d above the equilibrium point of the unloaded spring (i.e. the spring without the platform and fly)...

Homework Statement This problem has actually been on here twice (with varying numbers) but not yet solved entirely A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal spring is attached, as the drawing illustrates. The...

Homework Statement A 30.0 kg block is resting on a flat horizontal table. On top of this block is resting a 15.0 kg block, to which a horizontal spring is attached. The spring constant of the spring is 315 N/m. The coefficient of kinetic friction between the lower block and the table is 0.555...

Homework Statement A car towing a 92 kg trailor with a spring between the car and the trailor. the accelertion of the car is .3. the spring constant is 2300 how far is the spring stretched Homework Equations Fs=kx The Attempt at a Solution Fs=kx ma=kx (92)(.3)=2300x x=.012m...

Homework Statement A 30.0 kg block is resting on a flat horizontal table. On top of this block is resting a 15.0 kg block, to which a horizontal spring is attached. The spring constant of the spring is 325 N/m. The coefficient of kinetic friction between the lower block and the table is...

A 520 kg object is released from rest at an altitude of 800 km above the north pole of the earth. Ignore atmospheric friction. The speed of the object as it strikes the earth’s surface, in km/s, is closest to: a.3.7----b. 2.7---c.1.9-----d. 4.0------e. 2.3 Conservation of energy, where...

Hi all, I am having difficulty with a question. I would like some guidance. QUESTION: A block rests on a frictionless horizontal surface and is attached to a spring. When set into simple harmonic motion, the block oscillates back and forth with an angular frequency of 9.5 rad/s. The drawing...

Alright I am in a high school physics course and my teacher isn't always correct. I asked him if the potential energy for an object at its maximum height after being launched from a spring is equal to that of the potential energy when the object is compressing the spring most(right before it is...

A 500g block is attached to a 60cm long massless spring with spring constant of 40N/m and is at rest with the back of the block at point A on a frictionless table. A horizontal force of 20N is applied to pull the block towards the right. What is the block's speed when the back of the block...

A spring with k = 47 N/m hangs vertically next to a ruler. The end of the spring is next to the 15 cm mark on the ruler. If a 2.7 kg mass is now attached to the end of the spring, where will the end of the spring line up with the ruler marks? I got the answer to be 141 cm because I thought...

:smile: How do i find the velocity of a block of mass 100 lb being dropped a distance 5 ft onto a spring whose stifness is 100 lbs/ft after the spring has deformed 4 in? im sure it has somthing to do with work of a spring force but i don't know exactly how. any ideas?

Here is the problem, it is simple: An air glider is attached to a massless spring, which is compressed 0.18 m from it's relaxed position. Find the velocity of the glider at its original position, and at 0.25 m. Spring constant is 10 N/m, mass of glider is 0.15 kg. I have solved this...

A massless platform is kept on a light elastic spring. When a particle of mass 100g is dropped on the platform from a hieght of 24cm it strikes the platform and compresses the spring by 1cm. From what hieght should the particle be dropped to cause a compression of 4cm? [text book answer: 396cm]

A spring with spring constant k stands vertically, and a mass m is placed on top of it. The mass is gradually lowered to its equilibrium position. With the spring held at this compression length, the system is rotated to a horizontal position. The left end of spring is attached to a wall, and...

Hi some help on the following problem would be very useful. The probem is based around a mass with two horizontal springs attached to it, one on either side. "A mass m = 1 kg is mounted between two identical springs of K = 100 N/cm" What is the portential energy of either spring if the...

Hello all, I am looking for some assistance with a physics problem that I have for my physics class. Any help would be greatly appreciated because I have no idea where to start. Thank you all ahead of time for your help. The problem is: A 10-g mass is attached to the end of an...

I have this homework question which I don't understand how to do it. Since I am not homew right now, I can't post up the picture. I will explain what the picture looks like. Picture: ___ = Wall $ = Spring | = Connection (*) = mass ____________ $ 2.8N/cm...

I don't understand how to calculate force constants of a combination of springs. for example 2 spings parallel with the mass on one end lying on a table. or 2 springs attached with mass at one end lying on a table. i know that force constant = sum of forces/ extension but just...

sorry, couldn't think of a better title anyways, I'm somewhat stuck on 2 questions i have in my homework assignmentfirst one:Three blocks are supported using the cords and two pulleys. If they have weights of WA = WC= W, WB= kW, determine the angle (theta) for equilibrium. Given: k = 0.25...

Question :A diver springs upward from a board ...Need help I am stumped as to how to go about answering this question...A diver springs upward from a board that is three meters above the water. At the instant she contacts the water her speed is 8.90 m/s and her body makes an angle of 73.0° with...

I have been working on this problem for an hour and can't seem to figure it out. I know there must be something fundamental that I must be doing wrong. Can someone give me a pointer? A platform of mass 0.8 kg is supported on four springs. A chunk of modeling clay of mass 0.6 kg is held...

I'm trying to derive the formula for the period T as a function of the mass of the object. Here is my attempt. Note that I cheated and passed the section I had trouble with, without fully understanding it. http://www.filehive.com/files/0722/image.jpg Much of this is quite straightforward for...

A mass is resting on a horizontal surface without friction. It is connected on both sides by slinky springs k1 and k2 (that is they have different spring constants, and the equilibrium position will not be in the center of the system). First I had to find the equation of motion after setting up...

Hello everyone , I'm new in this forum . I'm 16 and currently doing self study in Mechanics 3 . I've encounter a problem in the 2nd chapter of Mechanics 3 which is Elastic Springs and Strings . Here goes : A ball of mass 0.5kg is attached to one end of a cord of unstretched length 0.6m...

An object is attached to the lower end of a 100-coil spring that is hanging from the ceiling. The spring stretches by 0.160 m. The spring is then cut into 2 identical springs of 50 coils each. Each spring is attached between the ceiling and the object. By how much does each spring stretch?

a point mass is constrained to move in a horizontal plane and is attached to four fixed pegs by 4 light springs. The four pegs are arranged at the corners of a square of side root2*a. Each spring has a natural length of a/2 and a spring constant a. If the mass is displaced towards one corner...

I have no idea where to start with springs,I like to blame my lecturer... Anyway I have a past paper and there's a question that goes something like this A particle of mass m hangs freely suspended by a light elastic spring of stiffness k. In equilibrium, the extension of the spring is d...

Hello I am trying to find more information about parabolic leaf spring designs. I have allready learned linear leaf spring design, and I am curious to know how parabolic differs. (besides higher powers) Thanks

I got the following problem wrong, and don't know why, so hopefully somebody would be able to help me out! Three identical (massless) springs are hung from the ceiling. Spring 1: Nothing hung from spring. The spring's bottom is 0.2 m below the ceiling. Spring 2: A 7 N object is hung from...

I have a question on a recent assignment. A weightless spring is stretched 10 cm by a suspended 1-kg block. If two such springs are used to suspend the block, one spring above the other, to effectively provide one double-length spring, then the total stretch of the double-length spring will...

two small blocks are resting (and touching) side-by-side on a frictionless tabletop. the block on the left is connected to a wall to the left of it by a spring having stiffness constant k=75 N/m. the one on the right is connected to a wall on to the right of it by a spring of k=50 N/m. when the...

:blushing: 1. Is work of a spring the same as the potential energy of a spring? U = .5kx^2? 2. Do springs have a kinetic energy formula? If so, what is it? 3. Work is the same as energy right? Because work and energy are both in joules, right? work = fdcostheta = kgm^2/s^2 = Newton...

A particle P of mass m is attached to one end of a light elastic string of natural length L whose other end is attached to a point A on a ceiling. When P hangs in equilibrium AP has length \frac{5l}{3}. Show that if P is projected vertically downwards from A with speed \sqrt(\frac{3gl}{2}), P...

A particle P of mass m is attached to one end of a light elastic string of natural length L whose other end is attached to a point A on a ceiling. When P hangs in equilibrium AP has length \frac{5l}{3}. Show that if P is projected vertically downwards from A with speed \sqrt(\frac{3gl}{2}), P...

If two springs, having different spring constants, are in a series (lined up, NOT parrallel): is the Force pulling the spring = (sum of spring constants)*(distance stretched) ?

ok guys I'm working on this problem: http://img238.imageshack.us/img238/1457/b15bf.jpg now, I think the answer is 7.0149 because the force of the block is 47, and when u divide by the bigger spring constant, 6.7, u get 7.0149 The other one expands more. I think the question is worded...

I'm having some trouble with the following question: http://www.mattmaly.com/spring.jpg Obviously I know to use Hooke's equation somewhere in this problem: F = -kx In the above equation, F = the force, caused by gravity, of the board pulling the spring horizontally, and k = 176 N/m as...

Hi, I am working on a simulation and I have a problem of similar nature to the following: Consider a horizontal frictionless pipe containing two damped springs with the same diameter as the pipe. Suppose both of the springs are moving horizontally through the pipe, one faster than the...

Hey, I am doing coursework for physics (AS level a bit like high school in US) in which we stretched springs in a variety of ways and gathered data and calculated spring constants. As part of the mark scheme i should do extra research into the theory behind the results. It was suggested that I...