Velocity-time graph of a particle moving in a straight line is shown in figure. At time i=0, s=-10 m. Plot corresponding a-t and s-t graphs.

a = slope of v-t graph and s = area under v-t graph.Further, for t≤2s, velocity (i.e. slope of s-t graph) is positive but increasing. Therefore, s-t graph is as under.Same logic can be applied with other portions too.