This is a handout which describes how to use a slow motion video of a ball released from rest on a ramp. (The video is provided for free as a link in the document.)
In this video you will see a ball released at the top of a ramp. here is a position scale marked in centimeters (every 0.01 m) attached to the ramp, but it is a little difficult to read. To make it easier to read the position of the ball, there are blue triangles every 0.10 m (10cm). The real time will flash on the screen at 0.50 second intervals. (Remember that this video was shot in slow motion.)
● Now rewind the video until you see the time 0.50 s, and record the position of the ball.
● Repeat this to record the positions at the times of 1.00s, 1.50s, 2.00s, and 2.50s.
You now have data for time and position for a ball released from rest on a ramp that you can graph and analyze.