Question

what is variable acceleration and retardation​

Answer 1

Answer:

Retardation is negative acceleration...

Variable acceleration is when the velocity keeps on changing with unequal amounts

Answer 2

Answer:

Acceleration=Change In Velocity/Time Taken. Acceleration is a vector quantity. It is positive if the velocity is increasing and negative if velocity is decreasing. The negative acceleration is also called retardation or deceleration.