
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 bullet with a mass of \( m = 10 \) g, flying horizontally with a speed of \( v_{1} = 400 \) m/s, passes through a massive board and emerges from it with a speed of \( v_{2} = 100 \) m/s. Find the amount of work done on the bullet by the resistive force of the board.

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