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March 30, 2017

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A 0.077 kg arrow is fired horizontally. The bowstring exerts an average force of 80 N on the arrow over a distance of 0.80 m. With what speed does the arrow leave the bow?

  • Physics - ,

    work done on arrow = force* distance = 80*.8 = 64 Joules
    that is now kinetic energy
    (1/2) m v^2 = 64
    I think you can solve for v

  • Physics - ,

    how do you solve for v ?

  • Physics - ,

    V = sqroot of (2 x 64) / m

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