Question

An object moving with a velocity of 20 m/s stops in in 5 sec then the retardation of the object is……​

Answer 1

Answer:

it is i think 4m/s just I think. I don't know much about retardation

Answer 2

ANSWER :

4ms  

−2

 

u=20m/s,v=0,t=5s

v=u+at

0=20+a×5

a=−4m/s  

2

 

Therefore, Retardation=4m/s  

2

Explanation:

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