Speed distance time displaystyle text speed frac text distance text time. Whenever a limiting speed is expressed by a Mach number it is expressed relative to the speed of sound eg. V 1 is the critical engine failure recognition speed or takeoff decision speed.
Now use the formula for average speed.
What is the formula to calculate distance. If youre looking to find the maneuvering speed for that day you can do so like this. V d t where v is the velocity d is the distance and t is the time so you can read it as Speed Distance Time. Theres moreto the story.