Figure shows the distance-time graph for the motion of two vehicles A and B. Which one of them is moving faster?

cbse
cbse-class-7-science
motion-and-time

#1

Figure shows the distance-time graph for the motion of two vehicles A and B. Which one of them is moving faster?
image

Answer:

Vehicle A is moving faster than vehicle B.
Speed is given by the relation,
image
This relation shows that speed of a vehicle is greater if it covers maximum distance in a given interval of time. The distance covered is compared by drawing a line perpendicular to the time axis, as shown here.
image
From the graph, it is evident that for a given time t, the distance covered by vehicle A is more than vehicle B. Hence, vehicle A is moving faster than vehicle B.