JAMB Physics 2021 Paper

Concept:The slope of a displacement-time graph represents velocity.Explanation:Displacement is plotted on the vertical axis and time on the horizontal axis.The slope of a straight line is given by $\frac{\Delta s}{\Delta t}$.Here, $\Delta s$ is the change in displacement and $\Delta t$ is the change in time.Therefore, $\frac{\Delta s}{\Delta t}$ gives the velocity of the body.Since the graph is a straight line, the velocity is constant or uniform.Answer:B. uniform velocity