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Railways PYQCBT 2 2017

RRB NTPC · Question 3

Which of the following is true for a Car running at a constant acceleration on a uniform straight road?

  1. Acceleration of the car is zero

  2. Velocity of the car is zero

  3. Acceleration of the car is continously changing

  4. Velocity of the car is constantly changing

Show answer & explanation

Answer: (D) Velocity of the car is constantly changing

Explanation

Constant acceleration means the velocity changes by the same amount every second – the velocity keeps changing while the acceleration itself stays constant and non-zero.