GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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direction of the force acting on the object
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direction of the motion
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frame of reference
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None of the above
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Detailed explanation-1: -Acceleration is positive when a body speeds up and is negative when the body slows down. 6. Positive acceleration is directed along the direction of velocity. In contrast, negative acceleration is directed opposite to the direction of the velocity.
Detailed explanation-2: -Mathematically, a negative acceleration means you will subtract from the current value of the velocity, and a positive acceleration means you will add to the current value of the velocity.
Detailed explanation-3: -The acceleration is negative when the object is moving in the positive direction, but the rate of change of velocity is negative(velocity is decreasing). We can also define these two acceleration when an object travels in the negative or opposite direction(right to left).
Detailed explanation-4: -When velocity of a body decreases due to force it is known as negative acceleration. When velocity increases it is positive acceleration.