The velocity of a car moving in a straight line increases from 8 m/s to 22 m/s in 7 seconds. What is the average acceleration of the car during this period? Question 3 options: A. 2.3 m/s^2 B. 2.8 m/s^2 C. 1.8 m/s^2 D. 2.0 m/s^2

Velocity is measured by (final velocity - initial velocity)/time taken, or simply put, change in velocity/time taken. Our original velocity was 8, and our final was 22. With our information, subtract 22 by 8 and then divide by 7 (final - inital)/(time taken). 22-8 = 14 14/7 = 2. Your average acceleration was 2.0 m/s^2. The answer is D.)  I hope this helps!