Physics · Motion
Which of the following statements about acceleration is correct?
- 1Acceleration is positive when it acts opposite to the direction of velocity.
- 2The SI unit of acceleration is m/s.
- 3Acceleration is always positive regardless of its direction.
- 4Acceleration is negative when it acts opposite to the direction of velocity.✓
Correct answer
Acceleration is negative when it acts opposite to the direction of velocity.
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