Give 1 example of - variable acceleration,uniform retardation.

Hi,

Variable acceleration/ non-uniform acceleration i.e. velocity increases in unequal amount with equal interval. For example, a car is moving in a crowded street, when car find space it will move with greater speed and if it stuck in crowd then it will move with less speed.
Retardation means negative acceleration i.e. when velocity decreases. For example, when we apply break on a car moving with velocity 40km/h. Then its velocity reduces from 40km/h to zero.

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