Question

what do you mean by negative acceleration ? define it with an example​

Answer 1

Answer:

it is also called retardation . when acc starts Decreasing with time . eg a free falling object

Answer 2

Explanation:

negative acceleration means that the rate of change of velocity is negative or velocity decreases. Example: (1) When we apply brakes in a moving car, then negative acceleration acts on it and the car stops.

(2) When we throw a ball upwards, then also negative acceleration acts on it.