Maharashtra BoardEnglish MediumSTD 9ScienceLaws of Motion3 Marks
Question
Explain what is positive, negative and zero acceleration.
✓
Answer
Positive Acceleration: When the velocity of an object increases, the acceleration is positive. In this case, the acceleration is in the direction of velocity.
Negative Acceleration: When the velocity of an object decreases with time, it has negative acceleration. Negative acceleration is also called deceleration. Its direction is opposite to the direction of velocity.
Zero Acceleration: If the velocity of the object does not change with time, it has zero acceleration.
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