Question

The retardation of a moving vehicle is 4m/s^2. What does this mean?​

Answer 1

RETARDATION IS OPPOSITE OF ACCELERATION, IT MEANS THAT THE RATE AT WHICH AN OBJECT SLOWS DOWN ITS VELOCITY

HOPE THIS HELPS YOU

Answer 2

This means that the vehicle is accelerating with 4m/s² in the direction opposite to its velocity i.e. the speed of vehicle is continuously decreasing