Answer:
The uncertainty in the average speed is 0.134 meters per second.
Step-by-step explanation:
Let be 
the average speed function, we calculate the uncertainty in the average speed by total differentials, which is in this case:
Where:
- Uncertainty in the average speed, measured in meters per second.
- Partial derivative of the average speed function with respect to distance, measured in 
.
- Partial derivative of the average speed function with respect to time, measured in meters per square second.
- Uncertainty in distance, measured in meters.
- Uncertainty in time, measured in seconds.
Partial derivatives are, respectively:
, 
Then, the total differential expression is expanded as:
If we get that 
, 
, 
and 
, the uncertainty in the average speed is:
The uncertainty in the average speed is 0.134 meters per second.
