Goalless problem – dry ice puck hitting spring
https://app.pivotinteractives.com/activities/594d6716df600500116459ef/preview
Goalless problem – dry ice puck hitting spring
https://app.pivotinteractives.com/activities/594d6716df600500116459ef/preview
Change incline, see force to pull up cart to same height
http://www.physicsclassroom.com/Physics-Interactives/Work-and-Energy/Its-All-Uphill
Change heifht of release of cart, measure stopping distance
http://www.physicsclassroom.com/Physics-Interactives/Work-and-Energy/Stopping-Distance