EcoMotion Autos is a car manufacturing company. They are conducting research regarding their 3 brand new car models that are going to be released next month. You have been requested to assist them by helping them to analyze the data taken during the test drive. 

You are provided with three input files model1.txt, model2.txt and model3.txt containing the speed measured at the end of each time interval. 

Example input files : 

model1.txt       

model2.txt        

model3.txt         

0      0
100    1
200    5
300    13
400    29
500    57
600    68
700    78
800    89
900    99
1000   111

0	0
100	1
200	7
300	12
400	31
500	63
600	74
700	89
800     98
900	107
1000	120

0	0
100	5
200	15
300	21
400	39
500	55
600	69
700	81
800     101
900	113
1000	122

• First column in each file is the time measured in milliseconds. 
• Second column is the speed measured in kilometers per hour. 

Note: The time values for every input file are the same. (0, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000)

In this lab, you need to develop a python program to calculate and output the maximum acceleration reached by each car model during the test drive using the provided skeleton code. Furthermore, you need to plot a graph of acceleration against time for each car model. Refer the Lab 7: Beams and Cars L7.E2 for instructions.

Please submit the flowchart diagram that illustrates the algorithm of your program here.