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anonymous

  • 5 years ago

A stone is dropped from the edge of a roof, and hits the ground with a velocity of -185 feet per second. How high (in feet) is the roof?

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  1. amistre64
    • 5 years ago
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    How many times do I have to tell these kids to get off my roof!!

  2. anonymous
    • 5 years ago
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    Vf^2 = Vi^2 + 2*a*d Vf = -185 Vi = 0 a = -9.8 so for d

  3. amistre64
    • 5 years ago
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    We had a question in our textbook; if you drop an anvil off a cliff....why are people doing this!!

  4. anonymous
    • 5 years ago
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    solve for d* sorry..i can't seem to type today

  5. anonymous
    • 5 years ago
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    Wow, that makes so much sense, thank you! And it does make me wonder about the people who make these questions up!

  6. anonymous
    • 5 years ago
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    Doesn't that method assume an acceleration due to gravity of 9.8 FEET per second?

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