(I) A car slows down from 28 ms to rest in a distance of 88 m. What was its acceleration, assumed constant?

The  value is  

Explanation:

From the question we are told that  

       The  initial speed is   at a distance of  

        The  final speed is      at a distance of  

Generally  from the  kinematic equation we have that

=>  

=>  

=>  

The negative sign shows that it is decelerating

a sonic boom is a loud boom that breaks the sound barrier

explanation:

i think its d if wrong im sorry