• db2@lemmy.world
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    2 months ago

    If they’re being launched by the same spring mechanism you’re better off with the bowling ball than a little glass bullet.

    • redlemace@lemmy.world
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      2 months ago

      Depends, how tight is the spring? At high velocity i’d guess a marble will penetrate the body, where at low velocity a marbel would be easier to stop

      • JayDee@lemmy.sdf.org
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        2 months ago

        A bowling ball imparted with the momentum from a slingshot won’t even have the energy to stay air-borne.

        The marble imparted with the momentum from a slingshot will fracture or even penetrate your skull.

        Momentum is m*v. However, kinetic energy is (1/2)m*v^2, where the velocity is providing exponentially more to the equation.

  • finitebanjo@lemmy.world
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    2 months ago

    Is the relative force and distance the same for each? Are they rolled at you?

    The bowling ball has more friction so at the same force would be less when it reached you.

    • Zwiebel@feddit.org
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      2 months ago

      The bowling ball has a lower friction to mass ratio and will therefore slow down less

      • finitebanjo@lemmy.world
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        2 months ago

        Assuming perfect spheres there is similar or the same friction with the surface it rolls along for both and much larger air resistance for the bowling ball.

        Mass doesn’t matter because it is a component of Force which is initially equal for both. The acceleration and speed will be different for both to make forces equal.

        The bowling ball will lose more of the force than the marble regardless of which slows down faster.