A car starts motion from rest at uniform acceleration of 2m/sec 2
For 3 seconds ,and then it maintains a constant speed for 2 seconds.Then the breaks are used to decelerate the car uniformly to rest during a time of 3 seconds.

Draw the graph representing the journey of the car then calculate

1)the maximum speed in km/sec
2)the total displacement covered

We do not do your homework for you. We only assist you. Have you attempted the problem yet? If so, please post what you have attempted. If not, please let us know where you are stuck.

If it's easier for you, start with the graph. They probably want a position and time graph and a velocity and position graph.

For me personally, it is easier to start with the math then create a graph. Can you identify your known variables and unknown variables?