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anonymous

  • one year ago

Use the information on page 135 to find the height of the second hill of the roller coaster.

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  1. anonymous
    • one year ago
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    @jim_thompson5910

  2. anonymous
    • one year ago
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    http://www.mpaper.net/mpaper.php?hash=84a30c61-460c-4394-b11c-c57fdb25a780 page 135

  3. anonymous
    • one year ago
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    i already solved for h, i got h = 195 - (v^2/2g)

  4. anonymous
    • one year ago
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    but how do i find the actual height of the second hill, like what do i plug in

  5. jim_thompson5910
    • one year ago
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    now plug in v = 49 (speed we want) and g = 32 'g' is the acceleration of gravity of Earth at sea level. This is something you either memorize or look up in a table. It turns out that g = 32 ft/s^2. Every second, a falling object's speed gets 32 ft/s faster

  6. anonymous
    • one year ago
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    so h = 157.48?

  7. jim_thompson5910
    • one year ago
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    yeah I'm getting 157.4843750

  8. anonymous
    • one year ago
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    thanks!

  9. jim_thompson5910
    • one year ago
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    you're welcome

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