2. A cyclist is cycling at a uniform rate of 12 m/s for 8 s. He then stops pedaling and the cycle comes to rest in next 5 s. (i) Draw its velocity-time graph. (ii) Using graph calculate the average retardation of the cyclist. (iii) Find the ratio of distance covered with uniform velocity to the distance covered with variable velocity. (iv) Using graph calculate Average velocity of the cyclist between 4 s and 10 s.​