It takes a truck 3.56 seconds to slow down from 112 km/h. what is its average acceleration

Complete question is

It takes a truck 3.56 seconds to slow down from 112 km/h to 87.4 km/h. What is its average acceleration?

To convert km/h into m/s multiply by 5/18

Initial velocity =u=112 km/h=112*5/18 m/s = 31.1 m/s

Final velocity=v=87.4 km/h= 24.2 m/s

Time=3.56 secs

Average acceleration = change in velocity/time

==

=

=1.94 m/s²

answer: decibel

explanation:

need to see circuit to get time constant