Question

Difference between positive and negative acceleration​

Answer 1

Answer:

➡Positive acceleration means that there is an increase in speed and negative acceleration means that there is a decrease in speed.

➡ That means that the direction of the acceleration determines whether you will be adding to or subtracting from the velocity. 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.

Explanation:

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Answer 2

Positive acceleration.

positive acceleration means an increase in velocity with time. negative acceleration means the speed reduces with time. its a retardation.

Negative acceleration.

According to our principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, this object has a negative acceleration. In Example D, the object is moving in the negative direction and is speeding up.