Q. Velocity-time (v-t) graph for a moving object is shown in the figure. Total displacement of the object during the time interval when there is non-zero acceleration and retardation isPhysics Question Image

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Solution:

Between time interval 20 s to 40 s, there is non-zero, acceleration and retardation. Hence, distance . travelled during this interval = Area between time interval 20 s to 40 s