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TrentEastwood

  • 2 years ago

An 80g arrow is fired from a bow whose string exerts an average force of 125N on the arrow over a distance of 90 cm?

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  1. TrentEastwood
    • 2 years ago
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    @3psilon your thoughts on this?

  2. ksaimouli
    • 2 years ago
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    so what u need to find

  3. 3psilon
    • 2 years ago
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    First of all, Did you get the other one?

  4. TrentEastwood
    • 2 years ago
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    What is the speed of the arrow as it leaves the bow? @ksaimouli and @3psilon

  5. ksaimouli
    • 2 years ago
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    ok first find acceleration f=m*a change the g in to kg and use kinematic

  6. TrentEastwood
    • 2 years ago
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    @3psilon ok i got a to be 1562.5

  7. 3psilon
    • 2 years ago
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    Let me check it

  8. 3psilon
    • 2 years ago
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    |dw:1350612978140:dw|

  9. 3psilon
    • 2 years ago
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    Idk if that is right But it made sense to me

  10. Algebraic!
    • 2 years ago
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    \[F _{avg} *d = \Delta KE\]

  11. 3psilon
    • 2 years ago
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    w = (1/2)mv^2 w = fd fd = (1/2)mv^2

  12. Algebraic!
    • 2 years ago
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    use newtons, kg and meters..

  13. 3psilon
    • 2 years ago
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    Just solved for V

  14. 3psilon
    • 2 years ago
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    Get it @TrentEastwood ?

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