Vestal Regular Phantom\'s Revenge

4 Questions | Total Attempts: 72

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Vestal Regular Phantom\

Questions and Answers
  • 1. 
    If you notice, the Phantom Menace isn't stopped at its highest point. It is actually moving a at a good speed of 19 m/s. If a roller coaster cart has a mass of 200 kg with people inside, what is the kinetic energy of the cart at this moment?
    • A. 

      72000 J

    • B. 

      38000J

    • C. 

      3800 J

    • D. 

      47000J

  • 2. 
    This is a simplified picture of the Phantom's Revenge: Between position A and B, what will happen to the potential energy?
    • A. 

      It will decrease

    • B. 

      It will increase

    • C. 

      It will remain constant

    • D. 

      There isn't enough information to answer this question.

  • 3. 
    If you notice, the Phantom Menace isn't stopped at its highest point. It is actually moving a at a good speed 19 m/s. A cart has a mass of 200 kg. How fast will the cart be going when it has dropped 50 m? Hint: Use the conservation of energy equation. Neglect friction and air resistance.
    • A. 

      36.6 m/s

    • B. 

      25.7 m/s

    • C. 

      72.8 m/s

    • D. 

      82.5 m/s

  • 4. 
    Which one do you like?
    • A. 

      Yes, because the law of conservation says energy is conserved, so all kinetic will turn back in potential

    • B. 

      Yes, because the force acting on the carts is constant

    • C. 

      No, because some of the mechanical energy will turn into thermal energy (friction)

    • D. 

      No, because the total energy disappeared as the cart moved forward.

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