
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
The relationship between the skidding distance \( y \) (in kilometers) after an emergency brake of a certain car model and the braking speed \( x \) (in kilometers per hour) can be described by the equation \( y = ax^2 \). It is known that for this car model, the skidding distance is \( b \) kilometers when the speed is 60 km/h. If a car of this model skids for 3\( b \) kilometers after an emergency brake, then the car's driving speed is _________ km/h.

Present the answer in LaTex format: \boxed{Your answer}
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