PASCO PS-3220, Reference Manual

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PS-3220 Experiment 3: Conservation of Angular Momentum
23
013-15949A
Questions
1. How does the experimental result for the final angular velocity compare with the theoretical value for the final
angular velocity?
2. What percentage of the rotational kinetic energy was “lost” during the collision? Calculate the energy lost and
record the results in the Data Table.
.Data Table: Data and Results
Initial angular velocity
Final angular velocity
(experimental value)
Mass of disk (M1)
Mass of ring (M2)
Inner radius of ring (r1)
Outer radius of ring (r2)
Radius of disk (R)
Final angular velocity
(theoretical value)
Percent difference between experimental and
theoretical values
Percent of kinetic energy lost
% KE lost =
1
2
---
I
i

i
2
1
2
---
I
f

f
2
+
1
2
---
I
i
2

i
2
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 
 
 
 
 