Physics 173 Internet Question of the Week

The Questions

May 11 - May 15, 1998

Question #1:

This week's Internet search question of the week pertains to the topic of roller coasters. Use a major search engine (HotBot, Lycos, Alta Vista, Excite, Dogpile, etc.) to find a site titled Roller Coaster Physics by Tony Wayne. (If you still cannot find the page, you will likely find a link from a GBS page - visit the Project Corner, click Year-End Projects, click on the Physics of Roller Coasters, click on a page full of WWW links, and look for the Physics of Roller Coasters link.) This site is written by a high school physics teacher for high school physics students; it details the physics of roller coaster rides.

Once you have found the site, do the following (1.5 pt.):

  1. Identify the URL (address) of the page.
  2. Describe the search path which you took to find the page (see example description).
  3. Navigate to the page titled "Phhysiological Effects of Acceleration" answer the following questions:
    1. Describe the effect of centripetal acceleration upon blodd flow in a person.
    2. In your own words, summarize the effects of acceleration upon the average healthy person.


Question #2:

An 80-kg physics student is moving at 12 m/s at the top of a loop and 20 m/s at the bottom of a loop. The radius at the top of the loop is 6 meters and the radius at the bottom of the loop is 14 meters. Draw free-body diagrams for the student at the top and the bottom of the loop and determine the acceleration, net force, and normal force for each of these locations. (1.5 pt.) PSAYW







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