Wednesday, July 16, 2014

Tracker Balloon Propelled Model

Tracker Balloon Propelled Model

The motion analysed is that of two balloon-powered cars. Car A (on left), which has a mass of 125g, is lighter than Car B (on right), which has a mass of 175g. This report analyses the motion of the two cars travelling in opposite directions, powered by the balloons, and then colliding with each other.
In phase 1, both cars were accelerating, powered by the balloons. In phase 2, the cars collided, with car A coming to a rest momentarily while car B slowed down. In phase 3, car A started moving in the opposite direction while car B slowed down further. The forces acting on the cars result in the respective motions during the different phases.


video: ClaraKeng, model: lookang

http://weelookang.blogspot.sg/2014/07/tracker-balloon-propelled-model.html
model A fx = (-1.853E-1*t^2+2.551E-1*t+3.494E-1)*m for a parabolic force model
model B fx = (1.247E-1*t-3.060E-1)*m where x0 =2.06, v0 = -0.0611
author video: Clara keng
author model: lookang
https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/lookangejss/02_newtonianmechanics_3dynamics/trz/BallonPropelledModelclarakeng.trz