Foundation
Physics Foundation
graph in motion
Question

Figure shows the displacement-time graph for the motion of two boys A and B along a straight road in the same direction. Which of the two has greater velocity ?

B
None of the above
Both have same velocity
A
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Solution

From a graph of displacement vs time, the slope gives the rate of change of displacement or velocity

From the given graph the velocity of A is 204=5 km/hr
Velocity of B is 202=10 km/hr