Question

pls answer guys with correct answer​

Answer 1

Answer:

a) 0 m/s

b) 0.5 m/s^2

Explanation:

Whenever a body comes to rest it's velocity becomes zero.

Thus, v = 0 m/s

Accleration = ( v - u ) / t

= (0-2) / 4

= -2 / 4

= - 1 / 2

= - 0.5 m/s^2

Thus, retardation is 0.5 m/s^2