A car’s velocity–time graph is a straight line that intersects the time axis at and…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A car’s velocity–time graph is a straight line that intersects the time axis at t=5s and has a constant negative slope for 0≤t≤10s. Which statement about the car’s acceleration in this interval is correct?
(a) It is constant and positive.
(b) It is constant and negative.
(c) It is zero throughout the motion.
(d) It changes sign at t=5s.