Constant Velocity vs. Changing Velocity in Forces

Fill in your data from the hill lab here


We have been looking at force diagrams for a while now.  Today we're going to look at a pretty realistic simulation to see how these work in applied situations.

Got to http://phet.colorado.edu/en/simulation/forces-1d and download the Java applet.

http://www.math-aids.com/images/graphing-coordinate-plane-4singles.png

1.  Apply a force until the filing cabinet moves and then push it to the house.   Sketch the Force graph with the Fapp, the Ffric, and the Fnet.   I like to hit the Pause button at the bottom and then replay to do this.

2.  Repeat with two different objects.  Note the differences by sketching both of these, with x-y labels, as well.

3.  Try to get the force net to zero for the filing cabinet while it is moving.  When you get done, take a look at the acceleration-time tab a) before the cabinet moves  b) when the cabinet starts moving   c) while the cabinet has a net zero force.