A car moving at 12 m/s accelerates uniformly at 4 m/s for 8 s. What is its final speed?

Answer and explanation

Correct answer: C. 44 m/s

  1. Step 1: Use .
  2. Step 2: m/s.
Answer
44 m/s.
Why not the others: 32 m/s: it leaves out the initial speed. 24 m/s: it adds the numbers instead of using . 384 m/s: it multiplies all three quantities.

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A car moving at 12 m/s… | HKDSE (Hong Kong) Force and Motion