Question : The v-t graph for a particle is as shown. The distance travelled in the first four second is
Answer : The right option is (b)
The distance travelled is basically the path length between the two points.
Here, in case of v-t graph it is given by area under the graph
Distance = Area under the graph upto t=4s.
Area= (1/2) * base * height
Therefore, Area = (1/2)*(4)*(8) = 16m
Distance is 16m for the first 4 seconds.