It looks like the previous answer already provided the angular speed in radians per minute, which is \( 2640.000 \) rad/min. 

Here's the detailed process for clarity:

### Calculation Recap
1. **Speed Conversion**: The car's speed is converted from miles per hour to inches per minute.
   \[
   \text{Speed} = 55 \, \text{mph} = \frac{55 \times 63360}{60} = 58080 \, \text{inches per minute}
   \]

2. **Wheel Circumference**: The wheel's diameter is 44 inches, so its circumference is:
   \[
   C = \pi \times 44 = 138.230 \, \text{inches}
   \]

3. **Rotations per Minute**: 
   \[
   N = \frac{58080}{138.230} = 420 \, \text{rotations per minute}
   \]

4. **Angular Speed**:
   \[
   \omega = 420 \times 2\pi = 2640.000 \, \text{rad/min}
   \]

Would you like further explanation on any part of this calculation?

Learn how to convert car speed from miles per hour to angular speed in radians per minute. This problem involves speed conversion, wheel circumference calculation, and angular speed determination. Suitable for advanced high school students and anyone interested in physics and mechanics.

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