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Q: Meaning of retardation is …… acceleration.
  • A. negative
  • B. positive
  • C. All of the above options
  • D. Zero
Correct Answer: Option A - Retardation means negative acceleration. The rate of change of velocity is called acceleration. In the case of negative acceleration, the velocity of the object decreases, while in the case of positive acceleration there is a positive increase in the velocity of the object or vehicle.
A. Retardation means negative acceleration. The rate of change of velocity is called acceleration. In the case of negative acceleration, the velocity of the object decreases, while in the case of positive acceleration there is a positive increase in the velocity of the object or vehicle.

Explanations:

Retardation means negative acceleration. The rate of change of velocity is called acceleration. In the case of negative acceleration, the velocity of the object decreases, while in the case of positive acceleration there is a positive increase in the velocity of the object or vehicle.