How much time does it take for a truck to slow down if its acceleration is -15m/s2 and the change in velocity is -30m/s

2s

Explanation:

Given parameters:

Acceleration of the truck = 15m/s²

change in Velocity  = 30m/s

Unknown:

Time taken for the body to slow down = ?

Solution:

Acceleration is the rate of change of velocity ;

  Acceleration  =

    time  =  

Now insert the parameters and solve;

   time  =  = 2s