Set up the calculator and interface for data collection.Ĭ. When the reading on the calculator screen is stable, press to record the zero condition.ĩ. Remove all force from the Force Sensor.Į.

Select CH 1 from the SELECT CHANNEL menu.ĭ. Select OK to return to the main screen.Ĭ. Choose STUDENT FORCE for your force sensor.Į. Choose FORCE from the SELECT SENSOR list.ĭ. If not, set up DATAMATE for the Force Sensor manually (the interface will recognize the Motion Detector automatically). If CH 1 displays the Force Sensor and its current reading, skip the remainder of this step. Turn on the calculator and start the DATAMATE program. Use the black link cable to connect the interface to the TI Graphing Calculator. Connect the Motion Detector to the SONIC/DIG or SONIC/DIG 1 input of the interface. Connect the Student Force Sensor to Channel 1 of the CBL 2 interface. When the cord is stretched to maximum extension the cart should not be closer than 0.4 m to the detector.ĥ. Place the Motion Detector beyond the other end of the track so that the detector has a clear view of the cart’s motion along the entire track length. Clamp the Force Sensor so that the cord, when taut, is horizontal and in line with the cart’s motion.Ĥ. Choose a cord length so that the cart can roll freely with the cord slack for most of the track length, but be stopped by the cord before it reaches the end of the track. Attach the elastic cord to the cart and then the cord to the force sensor. Confirm that the track is level by placing the low-friction cart on the track and releasing it from rest. Measure the mass of your dynamics cart and record the value in the Data Table.Ģ. Calculate the work done, through the change in kinetic energy of the cart, by the elastic cord.ġ.Measure a cart’s momentum change and compare to the impulse it receives.Using the calculator to find the average force during a time interval, you can test the impulse-momentum theorem. The cart velocity throughout the motion is measured with a Motion Detector. The force applied by the cord is measured by a Force Sensor. The cart then changes direction and the tether will soon go slack. The tether will stretch and apply an increasing force until the cart stops. Its momentum will change as it reaches the end of an initially slack elastic tether cord, much like a horizontal bungee jump. The average force,, is the net force on the object, but in the case where one force dominates all others it is sufficient to use only the large force in calculations and analysis.įor this experiment, a dynamics cart will roll along a level track. Here we will only consider motion and forces along a single line. The impulse-momentum theorem relates impulse, the average force applied to an object times the length of time the force is applied, and the change in momentum of the object:

Impulse physics calculator