1. A car accelerates from a standstill to a speed of 30 m/s in a time of 10 seconds. What is its acceleration? 2. Equation for acceleration: a=(vf-vi)/t 3. a= ? (it asks for acceleration) vf= 30 m/s vi= 0 m/s t= 10s 30 m/s - 0 m/s / 10s = 3 a= 3 m/s^2 I'm not sure if I did it right.