Impulse and Change in Momentum Solutions
Dynamics cart and track, motion sensor, force probe index card, rubber band.
To measure the change in the momentum of a cart, and to compare it to the impulse.
Set up the dynamics track and
sensors as shown. Attach an index
card to the cart to give the motion
detector a larger target. Be sure the
track is level.
Go to Experiment/Data Collection and change the “Duration” to 2.5 se
c and the
to 200 per sec.
Before each trial, be sure “zero” the force sensor.
Click on “Collect” and
either push or pull on
the hook on the force probe and also allow it to “coast” at times.
Keep your pushes and pulls on
the hook as parallel to the track as possible. The program will generate force versus time and velocity versus time
Graph A shows the x component of the force on the
cart before, during and after it is pulled.
integrate the area “under” the force versus time