The image you've uploaded contains a physics problem written in Sinhala, which discusses motion, velocity, and time in a few different cases.

Here's a quick breakdown:

The problem refers to a motorcar race where the cars travel a distance of 400 meters and perform various maneuvers with different velocities. The velocities mentioned are in meters per second (ms⁻¹).

There are multiple parts to the question, which seem to ask for the following:

1. (i) To calculate the average speed of the motorcar for a given part of the journey.
2. (ii) To calculate the time taken when the car changes velocity from 60 ms⁻¹ to 30 ms⁻¹ over a period of 4.5 seconds.
3. Further questions (iv, v) seem to involve different initial and final speeds and might also ask for calculations related to acceleration or time.

Would you like me to go through each of these parts and provide the solutions?