National Metric Day 2018 | When is National Metric Day 2018?


National Metric Day 
is observed every year 
on 10/10
It has been observed annually
on October 10th since 1976.

One more attempt to graph displacement vs time


Both graphs are done by Lenicha in Excel. Good job! 
Just one observation.  In the graph below, points are precisely placed on a parabola (trendline option of a second-degree polynomial).  That suggests a question about the graph above, which presents quite scattered points.  The only reasonable explanation is in the launching method; the launcher equipped with a rubber band might not be the best solution.  
Both graphs present a good start-point for further discussion in class.