Physics

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An archer shoots an arrow into a piece of wood. The arrow is traveling at 120 km/h when it strikes the wood. The arrow penetrates 3.8 cm into the wood before stopping. What is its average acceleration (in m/s2) into the wood?

  • Physics -

    vf^2=vi^2+2ad solve for a. vi needs to be in m/s, d in meters.

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