
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 small ball is thrown vertically upward from the ground. The relationship between the height $h$ (in meters) of the ball and the time $t$ (in seconds) it moves is $h=30t-5t^{2}$ ($0\leq t\leq 6$). If a second identical ball is thrown one second after the first ball, then the second ball will be at the same height as the first ball in the air after ______ seconds.

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