Tutorial: Tracker Video Analysis

Here is a quick tutorial on how to use Tracker Video Analysis to analyze motion.

Tracker Video is online.

[alexthompson]

Great video, this was just what I needed. Very clear + informative. Thanks so much!

[fizixx]

This is terrific. Gonna try the online version. We have a chipmunk that does this funny mosh-pit jump. I think the jump is 4 to 6 feet (1.22 m to 1.83 m). I can get pretty solid info about the actual length of the jump, and then the mass, time-of-flight, velocity and so on. Anything I can figure out. Should be fun! 🐿 🥳

[darkfoxex]

Thank you for the useful video! Appreciate it!

[ThiagoGasparino]

I think your acceleration is a bit off because the ball is several centimeters (maybe 10? more?) in front of the ruler/blackboard, so it looks a bit larger than it would if it were at that distance etc.

[Ecovictorian]

Are there programs/settings that automatically track the ball or at least suggest a position that you only have to confirm?

[JiPark-mfnu]

Can you measure the longest distance of the ball when it land the ground with this app too ?

[Borgou]

Hey! I have one question about this: If my video is in slow motion, will Tracker still keep the real time? I'm not too knowledgeable about this.. 😅

[ercolediana]

Hi, what if the visual is not perfectly static, like if i use a drone with the camera pointed to the ground? I have some groun control points, can I in some way measure the real movement of, for example, some pebbles? Is it possible?

[Rob-]

Can you recommend a camera that will plug and play into my computer? Photron? Keysense?

[yuriyh]

I've tried using this to determine g from Galileo's experiment by rolling a ball on a ramp and then plotting acceleration vs sinA to get g (=9.81). However, my g value comes up short only at 2.7. Was wondering if you had similar experience. I did try free fall, and it did produce g=10 m/s^2, but rolling on a slope did not for unknown reasons to me.

[eduardosantos-togz]

Thanks for the bid. Question… imagine that the ball has spin. I assume the ball would need to have one marker/dot to allow analysis. But is it possible to analyse rotation (number of revolutions per minute for ex), rotation axis angle? Thanks

[anshjaimini]

can i use displacement vs time in this instead of coordinates ?

[jluntz]

I am trying to determine the dimensions of a hexagonally shaped bottle lying on its side. A coin with known dimensions is next to it as a reference. The picture is taken from above and away which makes the shape of the coin to appear elliptical. (x-axis is longer). Can tracker determine the true dimensions of the bottle?

[Geostructureak]

can i determine the coefficient of restitution using this software for rockfall