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Retardation = change in vel / time taken
acceration means rate of change of velocity and if that acceration is negative then it is called as retardation
Retardation or deceleration is negative acceleration. It is opposite to the direction of velocity.
Ratio of change of velocity to the time
deacceleration
it is the velocity (V) divided by the retardation of the contaminant. The velocity, V is different from the regular velocity (which is Discharge/Area). V = regular velocity/porosity
When fast rays have passed through the mineral with greater velocity.
straight line curve
Retardation is the opposite of acceleration.It starts from a non zero uniform velocity.For this to happen any velocity (not zero) of a vehicle should go on decreasing.The rate of decreasing may be anything.If it is decreasing then that is retardation.
A body moving at a uniform speed may have a uniform velocity, or its velocity could be changing. How could that be? Let's look. The difference between speed and velocity is that velocity is speed.
Calculate the gradient of the curve which will give the acceleration. Change the sign of the answer to convert acceleration into retardation.
Add the rivers velocity to the boats velocity