Which one of the following statements is correct for an object released from rest?
Correct answer: A. The average velocity during the first second of time is 4.9m/s
- A. The average velocity during the first second of time is 4.9m/s
- B. During each second the object falls 9.8m
- C. The acceleration changes by 9.8m/s² every second
- D. The object falls 9.8m during the first second of time
Explanation
From rest with constant acceleration g, average velocity in first second = (0 + g·1)/2 = g/2 = 9.8/2 = 4.9 m/s. Option D confuses distance with average velocity.
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