Question

ans it plzz hurryyy....​

Answer 1

Answer:

a) 4/3m/(s^2)

b) till 15s it's acceleration after 15s it's deacceleration (decreasing acceleration)

Step-by-step explanation:

acceleration a={(final velocity)-(initial velocity)}/{(final time)-(initial time)}

it's a>0 then acceleration

if a<0 then deacceleration

if a=0 then constant velocity provided velocity is not zero

else the body is at rest