kiwi asked in Science & MathematicsPhysics · 1 decade ago

physics: you can't throw a raw egg against the cement sidewalk w/o braeking it...?

but you can throw it at the same speed into springy grass without breaking it. Explain why

2 Answers

  • Anonymous
    1 decade ago
    Favorite Answer

    The cement does not absorb the kinetic energy, so when the egg hits the cement all of its energy of motion remains in the egg itself - it slows down instantly and its shell is not strong enough to dissipate the energy without breaking.

    The grass is flexible and resilient, and each blade will absorb a small amount of the kinetic energy of the egg, slowing it down more gradually.

  • Bob R.
    Lv 6
    1 decade ago

    one of them is elastic and the other is inelastic. The grass 'deforms' to cushion the egg, while the wall doesn't.

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