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Unformatted text preview: e Momentum Conservation and
The momentum of a system is defined as the sum of all the momenta of all the
objects in the system; p
sys pi p1 p2 ...
i The next two statements are the most important for this lab and you should
refer back to them throughout the lab.
If a system has no net external force, then, momentum is conserved psys psys
i f If a system has net external force, then momentum is not conserved psys psys
i f Physics 1020 Laboratory #5 Momentum and Impulse Part II: The Experiment
Setting up for a collision. Physics 1020 Laboratory #5 Momentum and Impulse Weighing the Masses
Cart 1 will have 1 black cart block. Cart 2 will have 2 black cart blocks. The
carts and blocks already have labels on them. Do not mark on those
labels. Be sure to record the labels in Table 1. For the next step, place the carts UPSIDE DOWN to weigh them. Find the mass of Cart 1 with one block and the plastic card. You can place
everything together on the balance but keep the cart upside down and take
care not to let anything fall. Likewise measure the mass of Cart 2 with two
blocks. Use the labels to keep track of everything and record your data in
Table 1. Position your track on the table so that you will be able to easily reach it and
make sure that it is level so you will not have any systematic uncertainty
associated with that. Physics 1020 Laboratory #5 Momentum and Impulse Get on Track Place both carts on the track. Place the
motion detector at one end. Place Cart
1 and 2 about 40cm and 75cm away
from the detector respectively. Attach a
plastic card to Cart 1 securely using
some masking tape so that the card
faces the motion detector.
The ends of the cart with velcro must
be facing each other! The spring
loaded plungers on the carts must
also be pushed in and secured (to do
this push the plunger in and then
up). Motion Detector 40cm
Cart 1 Cart 2 Physics 1020 Laboratory #5 Momentum and Impulse Opening Logger Pro Make sure that your LabPro interface is plugged in and turned on. Plug
the Motion Detector into DIG/SONIC 1 on the side of the LabPro. Launch
Logger Pro by clic...
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