log inhelp

 | 

  • If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.

  • You already know Dokkio is an AI-powered assistant to organize & manage your digital files & messages. Very soon, Dokkio will support Outlook as well as One Drive. Check it out today!

View
 

tracker

Page history last edited by johnlittlephysics 7 years, 2 months ago

1401 Tracker

Installation

Lesson 1: 17 Feb 2017: Introduction to Tracker 

  • Download files in email on Introduction to Tracker (pdf), video of falling ball & sample tracker analysis file
  • Tracker help 
  • Video modelling (analysis): use given video or your own video of any falling ball (slow-mo or from high speed camera)
    • in the given video, for calibration, use height of 78.0 cm from bottom of fire extinguisher to the ground (align to white section of wall) - see image below.

 

    • track particle, tabulate data and plot graphs of s-t, v-t and a-t
    • Data tool: statistics and analyze (best fit straight graph)
      • click on Analyze -> Curve fits ->obtain straight line equation v = At + B.
      • From theory: s = ut + 0.5 at^2 = 0.5 gt^2, and v = u + at = gt.
      • So A = g of the similar order of magnitude of about 10 m/s^2

Enrichment: 

  • Particle modelling: How to build a particle model (a mathematical model of a point mass)
  • Go to Track -> New -> Kinematic (Analytic) model:
    • choose same clips as video modelling
    • input data by double click, type & enter
    • e.g. g = -10, u = 100, and formula for y = u*t + 0.5*g*t^2
    • play video
  • OR Go to Track -> New -> Dynamic model
  • Post your questions, comments, ideas etc. below using Add a comment.
  • Use Reply to continue a tread of ideas or discussion.

 

Comments (0)

You don't have permission to comment on this page.

Printable version