A velocity–time graph of a car lies entirely below the time axis from t = 0 s to t =…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A velocity–time graph of a car lies entirely below the time axis from t = 0 s to t = 3 s and entirely above the time axis from t = 3 s to t = 6 s. What can you conclude about the car at t = 3 s?
(a) It continues moving in the same direction.
(b) It reverses its direction of motion.
(c) It is at rest but will continue in the same direction.
(d) Its acceleration is zero at that instant.