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Q. The graph given shows the positions of two cars, $A$ and $B$, as a function of time. The cars move along the $x$-axis on parallel but separate tracks, so that they can pass each other’s position without colliding. At time $t_{3}$, which car is moving faster?Physics Question Image

Motion in a Straight Line

Solution:

at $t_3$, slope of graph for car $B$ is more than that of $A$. Hence car $B$ is faster.