Question

What is retardation?

Answer 1

It means Negative Acceleration.It is the rate which a body's velocity is decreasing .
Let's take an example-
A body was moving with 10m/s and it comes to rest in 5 secs.Find Retardation.
u=10
v=0
t=5s

v=u+at
0=10+a*5
-10=5a
-10/5 = a
a= -2 $m/s^{2}$

Answer 2

Answer:

it means negetive acceleration in which velocity of a body decreases

Explanation: