What is Spring: Definition and 999 Discussions

SPRING is a freeware GIS and remote sensing image processing system with an object-oriented data model which provides for the integration of raster and vector data representations in a single environment. It has Windows and Linux versions and provides a comprehensive set of functions, including tools for Satellite Image Processing, Digital Terrain Modeling, Spatial Analysis, Geostatistics, Spatial Statistics, Spatial Databases and Map Management.
SPRING is a product of Brazilian National Institute for Space Research (INPE), who is developing SPRING since 1992, and has required over 200 man-years of development and
includes extensive documentation, tutorials and examples. More than 70,000 users from 60 countries have downloaded the software, as of January 2007.

View More On Wikipedia.org
Recent contents Top users
  1. Aireve

    Measure of spring in system with roller

    Homework Statement m1= 0,05 kg, m2= 0,03 kg, mass of spring is omitted. We look at movement after spring stopped vibrate. How long does the spring measure during the movement if not stretched spring measure 0,1 meter and if we use force 0,1N elongation measures 0,02 meter. (sorry, English isn't...
  2. R

    Spring deflection load calculation for excavator

    1. A hydraulic cylinder equipped with a helical coil compression spring(figure is attached). The oil pressure acts the spring and moves the boom from position 1 to position 2. Maximum boom load in position 1 F1max= 16550N Minimum boom load in position 2 F2min = 18550N cylinder load...
  3. V

    Mass-spring-damper system "shock absorber"

    Homework Statement Find equations of motion for mechanical system given by picture, where m = 1kg, k1 = 10, k2 = 25, b = 3 and natural lengths of springs are a1 = 1m, a2 = 2m. The whole system is in a gravitational field g = 9.81m/s^2 Homework EquationsThe Attempt at a Solution I came up with...
  4. W

    Mass-spring-damper problem for kayaking waterfalls

    Working on installing shocks in my kayak seat to protect my back when landing flat off of tall waterfalls (necessary when there isn't a deep pool). I can't figure out if it will actually help. I guess you would call this a spring and damper in series problem (the damper being the water). Here's...
  5. V

    Initial compression of a spring

    My question here is a simple one. Most tension springs come with an initial tension requirement for spring action. Is it that tension springs are usually used for measuring through some range while compression springs are usually energy absorbers that such a difference is built into them? Also...
  6. P

    SMH-Block Attached to a spring

    Homework Statement A block with mass m = 1.7 kg attached to the end of a spring undergoes simple harmonic motion on a horizontal frictionless surface. The oscillation period is T = 4.3 s and the oscillation amplitude is A = 29.6 cm. When the spring is unstretched the block sits at a distance L...
  7. X

    Is My Understanding of Spring Energy Conversions Accurate?

    Hi guys, I'm currently trying to study the energy conversions of a spring - can someone tell me if my understanding of it is completely correct or not? Thank you so much! I made it as detailed as I could: One complete oscillation of a spring: The spring starts off stationary, meaning it has no...
  8. kq6up

    Time to Max Compression of a Spring

    Homework Statement [/B] A block of mass m slides down an incline with a height h. Later, it collides with a spring and compresses the spring to some maximum displacement. How long does it take to reach maximal compression.Homework Equations [/B] 1) ##mgh=\frac{1}{2}mv^2+\frac{1}{2}kx^2## 2)...
  9. ltnghia1304

    The frequency of two parallel springs and one weight system

    Homework Statement I want to find the angular frequency of the system below Homework Equations F = -kx U = 1/2*k*x^2 The Attempt at a Solution But here's the answer: I don't know how come this solution. Any one help me? Thank you so much.
  10. R

    Spring mass system attached to a disc

    Hello to all, first sorry about any mistakes because English is not my native language. I'm trying to solve this problem and I can't seem to find the equation of motion Homework Statement The disc and the point A both have mass m; θ(0) = 0 2. The attempt at a solution I tried to use the...
  11. EthanVandals

    Simple Harmonic Motion of a Spring?

    Homework Statement If a mass attached to a spring has motion given by the equation X(t) = 5(sin(3pi(t))), what is the equation for the acceleration of the spring? What is the angular speed of the spring,and what is its frequency and period? If the spring has a spring constant of 900 N/m, what...
  12. StudentOfScience

    Spring Pendulum with Drag: Newtonian and Lagrangian Approaches

    Homework Statement Consider a point mass of mass m suspended from an ideal, massless spring. Let ##\theta ## be measured from the vertical. Find the displacement of the mass as a function of time if the spring is initially stretched/compressed a distance ## l_0 ## and has an initial velocity...
  13. Aslet

    A spring-mass system in circular motion

    Homework Statement I uploaded the image of the system to have a visual example. : ) A point mass ## m ## connected to a spring is bounded to move on a circular guide with radius ## R ## without friction. The guide is fixed to a vertical plane and the other extremity of the spring is attached at...
  14. bartekac

    Can a spring reach its theoretical velocity without launching a projectile?

    Hi, So I am currently working on a rather simple problem of a projectile being launched by a spring at a certain angle. Ignoring friction, from conservation of energy we know that the velocity of the launched projectile would be ##v = \sqrt{\frac{kx^2}{m}}## (with ##m## being the mass of the...
  15. F

    Spring Force and Displacement: Understanding the Relationship

    Problem: Attempted Solution: The answer is actually (1/3)As^3+(1/2)Bs^2
  16. Feodalherren

    Undamped motion: mass and spring system

    Homework Statement A mass of 10 kg is hanging from a spring with k=2500N/m that is attached to a roof (see pic). The length of the spring when it is not in tension is l0=0.5 m. At the time t=0, the mass has a speed of v0=0.5 m/s when it passes the system's equilibrium position. Determine a)...
  17. Physics Dad

    Calculating Spring Constant From Plot of T^2 versus r^2

    Homework Statement Hi, I recently performed a lab experiment for calculating the moment of inertia and spring constant of a couple of equal masses on a steel rod. I had to do this experiment at the exact same time as performing another experiment so I was unable to perform any calculations in...
  18. Bunny-chan

    Understanding an equation in a dynamics spring problem

    Homework Statement A block of mass M = 0.5kg, attached to a spring of elastic constant k = 3N/m on a vertical wall, slides without friction through an horizontal air table. A disk of mass m = 0.05kg is placed on the block, whose surface has a coefficient of static friction \mu _e = 0.8. What...
  19. H

    Height of falling object vs. compression of spring

    1. Question Given an idea spring with constant K, a mass of M is dropped onto the spring from a height of H1. The spring compresses D distance. We take the mass off, and drop the mass again at a height of H2, where H2 is significantly greater than H1. This time, will the spring compress a...
  20. H

    Spring elastic potential, removing mass

    Homework Statement 5 identical masses M are suspended by a spring stretched a distance of L. If 3 of these masses are removed, what is the potential energy stored in the spring? 2. Relevant diagram So L is the distance stretched with 5 masses. Let L2 be the distance stretched with 2 masses...
  21. Deadawake

    How Does Friction Affect Spring Compression in a Bullet Collision?

    Hi, Please see the attach picture. I solved 3 quetions regarding this problem and I struggle with the 4th one. What I found was that the initial velocity after the collision is 1.98 m/s (Edit: 0.2m/s), and the maximum compression of the spring with no friction beneath is 0.44m (Edit: 0.044m) (I...
  22. flamespirit919

    Frequency of Vibration of Two Masses Joined by a Spring

    Homework Statement Two masses ##m_1## and ##m_2## are joined by a spring of spring constant ##k##. Show that the frequency of vibration of these masses along the line connecting them is: $$\omega =\sqrt{\frac{k(m1+m2)}{m1m2}}$$ Homework Equations ##x(t)=Acos(\omega t)## ##\omega...
  23. alex91alex91alex

    Solve Horizontal Spring Homework: T, A, V&Where Max V

    Homework Statement A 425 gram mass is attached to a horizontal spring. The spring is known to have a spring constant of 84.6 N/m. The mass is free to slide along a friction less surface. a) The mass is then pulled to the side a distance of 5.67 cm and released. Determine the period and...
  24. S

    A block of mass m=0.2 kg, is pushed by a spring of stiffness k=300 N/m

    I am currently taking a physics class and I'm studying for the final and I've been stuck on this problem and haven't been able to find help from the book nor help from online. The professor said the answer was .56m, but I've been trying formulas for about an hour now and haven't been getting...
  25. A

    How Does Energy Conservation Affect Block Movement Near a Wall?

    Homework Statement 2. Homework Equations Conservation Mechanical Energy The Attempt at a Solution I need to find how close to the wall the block will come. Since there's no friction, I presumed there'd be enough energy, and only enough energy, to go the same distance d to the left of A...
  26. lz975545

    How Do You Model a Block Attached to Springs in a Frictionless Box?

    Homework Statement A block is attached to the sides of a square box by 4 springs. The box is placed horizontally on a frictionless surface (ignore gravity). The mass of the block is ##m##, the natural length of each spring is ##l##, and the strength of each spring is ##k##. Place the block at...
  27. lz975545

    Finding the Equations of Motion for a Mass-Spring System

    Homework Statement A block is attached to the sides of a square box by 4 springs. The box is placed horizontally on a frictionless surface (ignore gravity). The mass of the block is ##m##, the natural length of each spring is ##l##, and the strength of each spring is ##k##. Place the block at...
  28. Buggsy GC

    How do i find the spring constant for a rope torsion spring

    I have built a torsion wheel catapult (Mangonel) for an assignment,and I need to do some theoretical calculations about the displacement, velocity and time of the projectile, the problem is I don't know how to calculate the spring constant without the displacement of the spring (x) and i don't...
  29. M

    Spring and Energy: Rocket clamped to an anchored spring

    Homework Statement A 11.6 kg weather rocket generates a thrust of 200 N . The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 580 N/m , is anchored to the ground. Initially, before the engine is ignited, the rocket sits at...
  30. K

    Free vibration of 100 DOF spring

    Hi, I have just started reading of "finite element model updating" which is a statistical means of updating the finite element model when there is source of uncertainty in the modelling parameters, modelling error, etc. My question below is NOT related to finite element model updating but to a...
  31. N

    Pendulum with spring instead of rod

    When we have solid rod instead of spring I can solve this problem in Microsoft Excel either with Euler´s method or Runge Kutta method, but that spring makes this problem hard for me.
  32. asteeves_

    Calculating Amplitude in Simple Harmonic Motion

    I have encountered two separate review problems that have to do with finding a value for amplitude and I am really struggling with it. 1. Homework Statement Question 1- A mass of 3kg is free to move on a horizontal frictionless surface and attached to a spring of k=15 N/m. It is displaced...
  33. E

    Ball launching off of a tray connected to a spring

    Homework Statement A 1.50-kg, horizontal, uniform tray is attached to a vertical ideal spring of force constant 185 N/m and a 275-g metal ball is in the tray. The spring is below the tray, so it can oscillate up and down. The tray is then pushed down to point A, which is 15.0 cm below the...
  34. K

    Oscillation Problem -- Why does my way not work?

    1. Problem Description: A massless spring hangs from the ceiling with a small object attached to its lower end. The object is initially held at rest at a position y. The object is then released from y and oscillates up and down, with its lowest position being 10cm below y. What is the frequency...
  35. R

    Block hung from vertical spring

    Homework Statement A block is hung from a vertical spring. The spring stretches (h = .0650 m ) for a particular instant in time. Consider the earth, spring, and block to be in the system. If m = .865 kg and k = 125 N/m, find the change in the systems potential energy between the two times...
  36. EthanVandals

    How Does Spring Compression Affect Kinetic Energy and Velocity of a Block?

    Homework Statement A spring that has a spring constant of 2000 N/m is compressed 5 centimeters from its rest position. If a 2.5kg block is placed on the edge of the spring and then released, what will the block's kinetic energy be once it has completely left the spring? How fast will the block...
  37. F

    Work done on an object in a spring pendulum

    Homework Statement The drawing shows three situations in which a block is attached to a spring. The position labeled "0 m" represents the unstrained position of the spring. The block is moved from an initial position x0 to a final position xf, the magnitude of the displacement being denoted by...
  38. Vitani11

    Difference b/t equilibrium and unstretched length of spring?

    Homework Statement Consider a mass attached to four identical springs, as shown in the figure. Each spring has a force constant k and an unstretched length lo, and the length of each spring when the mass is at equilibrium at the origin is a (not necessarily the same as lo). When the mass is...
  39. J

    Adjustable spring tensioner for 90deg rotating arm

    Hi all, I'm an electrical engineer and I'm part way through the design of a little project and I'm struggling with a mechanical element which I'm hoping someone may be able to assist with. I'm going to keep the finer details out of this to keep things simple and just focus on the issue. This...
  40. Lafith

    Where is the force coming from to compress the spring

    Homework Statement Given a plank is moved with uniform velocity v. To which a mass is connected by a spring of force constant k. What is work done by the external agent on the maximum compression of the spring Homework Equations Work done by spring=0.5*k*x2 Work-energy theorem: total work...
  41. Guidestone

    Pulley and spring displacement

    Hey guys, I'm wondering why the displacement of the mass mounted in this setup is 2(x1+x2)?. I'm assuming that when the pulley rotates(when the mass is pulled downwards) the distance between the initial point and the end point of its center and the distance traveled by the mass are equal...
  42. R

    Spring block system on inclined plane

    1. Homework Statement : The block of mass m1 as shown in the figure (pic attached)is fastened to the spring and the block of mass m2 is placed against it. a)Find the compression of the spring in equilibrium position. b)The blocks are pushed a further distance (2/k)(m1 + m2)g sinθ against the...
  43. A

    "Calculating Work, Energy & Speed of Block on Spring

    I think I solved this correctly, but it puzzles me why they made two separate questions for the first two points. 1. Homework Statement A block of known mass m is attached to the free end of a spring, on a flat horizontal surface without friction. The spring is compressed by a known distance...
  44. D

    Conservation of momentum - Vertical spring

    Homework Statement A block of mass 200g is suspended through a vertical spring. The spring is stretched by 1.0 cm when the block is in equilibrium. A particle of mass 120g is dropped on the block from a height of 45 cm. The particle sticks to the block after the impact. Find the maximum...
  45. S

    Block on Spring SHM, Finding angular frequency

    Homework Statement An "ideal" spring with spring constant 0.45 N/m is attached to a block with mass 0.9 kg on one end and a vertical wall on the other. The floor has negligible friction, and you give the block a push and then let go. You observe that the block undergoes simple harmonic motion...
  46. T

    Sound & Music, Mass on a spring

    Homework Statement I have a mass of 100 g and I want to make it oscillate with a period of 10 Hz. What spring stiffness do I need? Homework Equations f = 1/2π√s/m The Attempt at a Solution I don't know how to find the stiffness to plug into the equation.
  47. G

    Spring problem using work energy theorem

    Homework Statement A 2.90 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0360 m . The spring has force constant 860 N/m . The coefficient of kinetic friction between the floor and the block is 0.35 . The block and spring are released from rest...
  48. Drakkith

    How Does Damping Affect the Dynamics of a Spring System?

    Homework Statement Consider the illustration of 3 springs: In A, we hang a very light spring and pan from a hinge. The pan and spring are so light, we can neglect any stretching of the original length ##l_{0}##. In B we add a weight ##mg## which force is balanced by ##kl## (Hooke's Law; the...
  49. Ameya Darshan

    Extension in a Spring: Which Mass Causes Greater Extension?

    Homework Statement Scenario: a block of mass 5 kg is hanging from a spring from an ideal pulley from one side, the other side supporting a mass of 10 kg through a STRING. Now, the 10 kg block replaced with a 5 kg block. In which case would the extension in spring be greater, assuming constant...
  50. Nacho Verdugo

    Mass sliding on frictionless inclined plane compresses a spring

    Homework Statement A body with mass m start from repose and slide along a plane without friction. The plane forms an angle with the horizontal. After sliding a distance d unknown, the mass touches the extremity of a spring non compressed and non stretched with no mass. The mass slides a...
Back
Top