A car traveling at 25 m/s applies its brakes and comes to a stop in 5.0 seconds. What is the magnitude of its acceleration during braking?
A5.0 m/s²
B30 m/s²
C125 m/s²
D0.2 m/s²
Explanation
📌 a = Δv/t = (0 − 25)/5.0 = −5.0 m/s². Magnitude is 5.0 m/s². Distractor B added velocities (25 + 5 = 30) — meaningless; C multiplied (25 × 5 = 125); D used reciprocal (5/25 = 0.2).