The iss orbits the earth at approximately 400,000m altitude. its mass is 419725 kg. the earth’s average radius and mass are 6.38e6m and 5.97e24kg. what is the orbital velocity of the international space station?

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction 

Answerthe distance between the two ends of the galaxy is 150,000 light years;