
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 displacement $s$ of an object and the time $t$ satisfy the function relationship $s=100t-5t^{2}$ $(0 < t < 20)$. Then when $t=2$, the instantaneous velocity of the object is ______.

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