Question

a body moving with 10 m/s comes to rest comes to rest in 2 seconds find retardation

Answer 1

Hey,
u = 10 m/s
t = 2 s
v = 0 m/s (Final velocity is zero because object has come to rest).

Therefore,
a = v-u / t

a = 0-10 / 2

a = -10 / 2

a = -5 m/s^2.

So, retardation = -5 m/s^2 .

Hope this helps you buddy!!
Take care always :):)
Yiri ##

Answer 2

here the final velocity will be zero coz' the object is at rest.
a=v-u/t
=0-10/2
=-5 m/s2
So the acceleration is -5m/s2 .

Hope it helps you.
And please mark me as the brainliest one !!!