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JAMB Physics 1983 Question 15

Question 15

Motion

A train has an initial velocity of 44 m/s and an acceleration of −4 m/s2. Its velocity after 10 seconds is

  1. A.2 m/s
  2. B.4 m/s
  3. C.8 m/s
  4. D.12 m/s
  5. E.16 m/s
Show the answer and explanation

Answer: B (4 m/s)

Explanation

v = u + at = 44 + (−4 × 10) = 4 m/s.