Arun Visited Delhi during summer break with his family and he decided to take a ride in a metro train. He wants to travel from Pratap Nagar to Chawri Bazar by following a given route. Metro train leaves the Pratap Nagar station at 4:45 pm and arrives at Kashmiri Gate at 5:00 pm. The distance between Pratap Nagar to Kashmiri Gate is 3 km and the distance between Kashmiri Gate to Chawri Bazar is 4 km.

Based on the above information:

a) Calculate the distance and displacement traveled by Arun.
b) Calculate the Average speed and Velocity. c) Draw the velocity – time graph if the metro is traveling uniformly with a velocity of 45 km/hr.
d) Write a paragraph explaining the two main functions of graphing in kinematics.​