Thursday, September 16, 2010

Practice Problems

  1. A football player has a velocity of 3 m/s. If his mass is 48 kg, what is his kinetic energy.
  2. Double the football player's mass. How does this affect his energy?
  3. Now double his velocity. How does this affect his energy?
  4. A girl sits a book with a mass of 1.2 kg on a shelf that is 1.4 m high. How much potential energy does the book now have?
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3 comments:

  1. Katie GogginsSeptember 16, 2010 at 6:31 PM

    Thanks! I got them. ;)

    ReplyDelete
  2. Kailynn JonesSeptember 19, 2010 at 11:00 AM

    can we have the answers to make sure we did them correctly?? Please : )

    ReplyDelete
  3. KickerSeptember 22, 2010 at 9:46 PM

    2 questions:

    1. Formula to use for work.

    2. The question on second page under concepts about GPE. Could you please explain this for me it is giving me trouble.

    ReplyDelete

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