This is a question with answer options. Goal: what is the formula for acceleration

Which of the following methods is more reasonable for accomplishing this goal?

Choose from:
[1]. acceleration is the change in the velocity times speed, divided by the time. Acceleration has a magnitude (a value) and a direction. The direction of the acceleration does not have to be the same as the direction of the velocity. The units for acceleration are meters per second squared (m/s2). a = acceleration (m/s2);
[2]. acceleration is the change in the velocity, divided by the time. Acceleration has a magnitude (a value) and a direction. The direction of the acceleration does not have to be the same as the direction of the velocity. The units for acceleration are meters per second squared (m/s2). a = acceleration (m/s2);...I think the answer is
[2].