Question

An object moving with a velocity of 8 m/s stops in 4 seconds. What is its retardation?
A) 1 m/s
B) 2 m/s
C) 4 m/s
D) 8m/s​

Answer 1

Answer:

is it correct answer?????

Answer 2

Answer:

I have tried to solve . I hope this will help you

Explanation:

Given that, initial velocity, u  = 8m/s , finial velocity, v = 0

time taken to change velocity = 4s

Acceleration = Change in velocity/ time taken

                     = (0-8)/4  = -8/4 = -2 m/s²

So, there is retardation of 2 m/s².