About
Projectile Motion with System of Masses and Spring
This is the simulation of the motion of two masses m and m1 situated at the ends of a spring of length L0 and negligible mass. The motion is restricted to two spatial dimensions, with the y-axis representing the vertical (if gravity is switched on).
We use Hooke's law for the spring force, and include a damping term that is proportional to the difference of the velocities of the masses on both ends of the spring.
Applying Newton's Second Law yields a second-order ordinary differential equation, which we solve numerically in the simulation and visualise the results.
Activities
- Drag the red mass to impart an initial velocity, and see how the system evolves.
- Observe what happens when you do the same, but with gravity switched on.
- Try changing the relative mass of the blue ball, and notice how the centre of gravity shifts.
- Try varying the spring constant and/or the damping coefficient while the simulation runs.
Translations
Code | Language | Translator | Run | |
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Software Requirements
Android | iOS | Windows | MacOS | |
with best with | Chrome | Chrome | Chrome | Chrome |
support full-screen? | Yes. Chrome/Opera No. Firefox/ Samsung Internet | Not yet | Yes | Yes |
cannot work on | some mobile browser that don't understand JavaScript such as..... | cannot work on Internet Explorer 9 and below |
Credits
Wolfgang Christian; Francisco Esquembre; Zhiming Darren TAN
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Versions
- http://opensourcephysicssg.blogspot.sg/2017/10/mass-and-spring-projectile-by-darren-tan.html
- https://zdtan.github.io/EjsS-2bodygrav/TwoBodyNewtonGravity.xhtml
Other resources
- http://www.compadre.org/Physlets/mechanics/illustration3_4.cfm Illustration 3.4: Projectile Motion by W. Christian and M. Belloni
- http://physics.weber.edu/amiri/director-dcrversion/newversion/airresi/AirResi_1.0.html Trajectory of a ball with air resistance by Farhang Amiri
- http://www.walter-fendt.de/html5/phen/projectile_en.htm HTML5 version of Projectile Motion by Walter Fendt
- http://www.compadre.org/OSP/items/detail.cfm?ID=7299&S=7 Ejs Intro 2DMotionLab Model by Anne Cox, Wolfgang Christian, and Mario Belloni
- http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=623.0 Projectile motion with equations by Fu-Kwun Hwang
- http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=1832.0 Airdrag by Fu-Kwun Hwang and ahmedelshfie
- http://archive.geogebra.org/en/upload/files/english/lewws/basketballsimulation_counterspeed_simulationspeed_updated1r.html Simulation of BasketBall Throw by Lew W. S.
- http://ophysics.com/k8.html by This email address is being protected from spambots. You need JavaScript enabled to view it.
- http://ophysics.com/k9.html by This email address is being protected from spambots. You need JavaScript enabled to view it.
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