Pleasee help me with this question!!!!!!!!!!!!
A car accelerates with a constant acceleration for 8 seconds before reaching top speed. The car completes a trip of 0.9 kilometer in a total travel time of 47 seconds (including the time it takes to reach the top speed). What is the final speed (in km/h) at which car completes the trip if it maintained the top speed for the entire remaining part of the journey?