1. Make sure to select mass 2,400 and force 3. Click the tools icon and
select the ruler and stopwatch. Measure the time it takes for the glider to move 51 centimeters.

Hint: Here are some tips:
⚫ make sure you selected mass 2,400 and force 3
•
make sure the you measure using the tip of the turbine as your
measurement reference

advance the video frame-by-frame until the tip of the turbine is at 51
cm on the ruler

read the stopwatch when the tip of the glider has reached 51 cm on
the ruler

Pivot