If the reading on the odometer of a vehicle in the beginning of a trip and after minutes were km and km respectively will the reading on the speedometer show this velocity were the vehicle i?

To determine if the speedometer reading reflects the calculated velocity, you need to know the distance covered and the time taken. If the odometer readings indicate a distance traveled and you divide that by the total time of the trip (in hours), you can calculate the average speed. The speedometer shows the vehicle's instantaneous speed, which can fluctuate based on acceleration or deceleration. If your average speed aligns with what the speedometer indicates at a specific moment, then yes, it reflects the velocity; otherwise, it may differ.