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A particle moves in the x-y plane with velocity v⃗ = (3î + 4ĵ) m/s. What is the magnitude of its velocity?

  1. (a) 3 m/s
  2. (b) 4 m/s
  3. (c) 5 m/s
  4. (d) 7 m/s
Answer and solution

Answer (c) 5 m/s

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