A car moving at 20 m/s accelerates at 2 m/s² for 5 s. What is its final speed?
Answer and explanation
Correct answer: C. 30 m/s
- Step 1: Use v = v₀ + at. Step 2. v = 20 + 10 = 30 m/s. Answer: 30 m/s. Why not the others: The other results misuse the formula.
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