In: Physics
please fill ot the data sheet for conservation of angular momentum using two air mounted disks lab. (show all work)
Table 1. Moment of Inertia of the disks
Mass, M (kg) |
Diameter (m) |
Radius (m) |
I (kg.m2 ) |
|
Upper disk |
1.3563 |
0.125 |
.0625 |
I upper = .0026490 |
Lower disk |
1.3438 |
0.125 |
.0625 |
I upper = .0026246 |
Table 2. Inelastic collision of two disks
Trial |
Reading of counter, n |
Angular velocity, w (rad/s) |
Angular momentum, L (kg.m 2/s) |
%diff. |
||||||||
Before collision |
after |
before |
after |
Before collision |
after |
|||||||
upper |
lower |
upper |
lower |
upper |
lower |
total |
||||||
1 |
360 |
0 |
358 |
11.3 |
0 |
11.247 |
||||||
2 |
0 |
330 |
290 |
0 |
10.38 |
9.1106 |
||||||
3 |
444 |
361 |
207 |
13.95 |
11.34 |
6.5031 |
||||||
4 |
-293 (clockwise) |
322 (counter clockwise) |
187 |
-9.205 |
10.116 |
5.875 |
||||||
Table 3. Kinetic Energy
Trial |
Rotation kinetic energy (J) |
|||
Before collision |
After collision |
|||
upper |
lower |
total |
||