# 6. If the asteroid is moving at a constant speed in its orbit, does this also mean it is moving at a constant velocity?

6.  If the asteroid is moving at a constant speed in its orbit, does this also mean it is moving at a constant velocity? Explain your answer.

8. What force (or forces) act(s) to hold the asteroid in orbit around the Sun? What direction does the force (or forces) act?

9. This asteroid’s motion is affected by many different massive objects. Rank the following in order of increasing influence: the Sun, Mars, Jupiter, and other asteroids. Explain your answer clearly and specify the main determining factors that you based your ranking on. (

10. Assume this asteroid has the shape of a sphere. A rock sitting on the surface of the asteroid has a weight of 100 Newtons. What would the weight of this rock be if it were moved to a distance above the surface equal to the radius of the asteroid? Include calculations or the logic used to get your answer. (It may be helpful to draw a picture to better visualize what is going on). How is the mass of the rock affected by its change in position?

11. At some point in its orbit, our asteroid is moving with a speed of 20 kilometers per second. Determine the kinetic energy of the asteroid assuming it has a mass of 1000 kilograms. Be sure your answer is in the correct units of energy. (1 kilometer = 1000 meters; 1 Joule = kg-m2/sec2).

12. If the distance from the Sun varied during our asteroid’s orbit, would its kinetic energy change? Explain. Would its potential energy change? Explain. Would the total energy (sum of kinetic and potential energy) of the asteroid change? Explain your answer

6. no, it is not moving at constant velocity. This is because velocity is a vector quantity which hasdirection and magnitude. Even though the magnitude is the same the direction is changing and…

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