Question

What is negative acceleration? Give one example of it.​

Answer 1

Answer:

The rate of Change of velocity is moving opposite to the direction of motion ,then it is called negative acceleration. Example - if an object is going with speed of 100km/hr and decrease speed immediately to 50km/hr. Then velocity decrease , it means acceleration also decrease, so it is negative acceleration.

Answer 2

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Explanation:

That means that the direction of the acceleration determines whether you will be adding to or subtracting from the velocity. Negative acceleration generally means retardation. When object is slowly down is said to be retardation.

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Example :- When we throw a ball upwards, then also negative acceleration acts on it. Thus, when the ball reaches the highest point, the velocity of the ball becomes zero.