Posted by john on Tuesday, January 8, 2013 at 4:28pm.
a c accelerates from rest in a straight line. after 12 seconds, it's velocity is measured as 42 m/s. use one of the linear equations of motion to calculate the car's acceleration

mechanical science  Steve, Tuesday, January 8, 2013 at 5:04pm
a = 42m/s / 12s = 3.5 m/s^2
or, use v=at, so a=v/t