
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
A car starts from location A and travels at a constant speed of 60 km/h along a highway. After 0.5 hours, another car also starts from location A and travels along the same highway in the same direction at a constant speed of 80 km/h. How many hours after the second car starts does it catch up to the first car?  
Please establish a linear function relationship to solve this problem.

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