Then you'll need to analyze each of the two videos below:
No Strings Attached
IN CASE I DIDN'T MENTION IT IN THE VIDEO, YOU DON'T HAVE TO PUT A DOT ON EVERY FRAME, YOU CAN SKIP AHEAD A COUPLE OF FRAMES BETWEEN DOTS AND IT WON'T HURT YOUR GRAPH.
Bring a print out of the velocity vs. time graphs for your video analysis to class on Thursday. Additionally, draw FBDz for the strings attached video for (1) the time before the blower has been turned on, (2) for the time a short while after the blower has been on, and (3) for the time after the mass has hit the floor. Additionally, you'll need the FBD for the no string attached video.