GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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either true or false
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False
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neither true nor false
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true
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Detailed explanation-1: -This means that the change in the velocity is still taking place when the velocity of the object reaches zero. Therefore, the body is still accelerating. Example-When a ball is thrown upwards on earth with a constant velocity, the gravitational force of the earth acts on it in the opposite direction.
Detailed explanation-2: -Yes, an object can have zero velocity and still be accelerating.
Detailed explanation-3: -It is possible that the acceleration of a particle is non-zero and velocity is zero at the same instant. For example, if a ball is thrown up then at the highest point, velocity is zero but the acceleration is non-zero.
Detailed explanation-4: -If an objects acceleration is zero, then its speed must remain constant.