Physics for IGCSE & O level - Forces And Motion (Section 1 - No. 3)
Which of the following statements is true regarding acceleration?
Acceleration is measured in meters per second squared (m/s²).
Acceleration is a scalar quantity.
Acceleration can be positive or negative.
Uniform acceleration means a constant change in velocity.
解释
Acceleration is measured in m/s², can be positive or negative, and constant for uniform acceleration.