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anonymous

  • one year ago

A rowboat passenger uses an oar to push the boat off the dock by exerting a force of 30.0 N for 4.0 s. What impulse acts on the boat? A. 7.5 kg * m/s B. 480 kg * m/s C. 0.13 g kg * m/s D. 120 kg * m/s ** :/

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  1. Michele_Laino
    • one year ago
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    it is simple, we have to apply this formula: \[\Large I = F\Delta t\]

  2. Michele_Laino
    • one year ago
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    so we can write: \[\Large I = F\Delta t = 30 \times 4 = ...\]

  3. anonymous
    • one year ago
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    120? so choice D is our solution?

  4. Michele_Laino
    • one year ago
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    yes! That's right!

  5. anonymous
    • one year ago
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    yay!! thank you!

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