- The object starts from rest, so initial velocity \( u = 0 \).
- Acceleration \( a = 2.5 \, \text{m/s}^2 \).
- Time of acceleration \( t = 4 \, \text{s} \).
Use the formula for final velocity:
\[ v = u + at \]
\[ v = 0 + (2.5 \times 4) = 10 \, \text{m/s} \]
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