1. Explain how you could use your investigation to plan a track that is fun, challenging and one that is relatively safe. You might think for example: When does he: fly off an end? make it to the top a hill? or land a jump? 2. Build a good track and sketch it. Then use the Energy Graphs to study the Skater’s energy.
• Decide which graphs or chart best helps you understand what makes your track successful.
• Look in your text to find out what the Conservation of Mechanical Energy means and explain it in your own words.
• Explain why your track is successful in terms of Conservation of Mechanical Energy. Include drawings of the Chart or Graphs to help explain your reasoning.
3. Using the Law of Conservation of Mechanical Energy, explain what things need to be considered when designing any successful track.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.