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Physics Flashcards: Optimize Designs For Collision Safety

Study Optimize Designs For Collision Safety in Physics with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Which collision type has the smallest rebound and typically reduces peak forces: more elastic or more inelastic?

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ANSWER

More inelastic. Inelastic collisions absorb more energy, reducing rebound.

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Physics: Motion and Stability

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This deck focuses on Optimize Designs For Collision Safety, giving you a quick way to review the definitions, rules, and examples that matter most for Physics.

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Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 37Practice questions for this set
A 1000 kg car is tested in a crash at v=18 m/sv=18\ \text{m/s}. Engineers can choose between two crumple-zone designs (single parameter is deformation distance dd): Design A allows d=0.50 md=0.50\ \text{m}, Design B allows d=0.80 md=0.80\ \text{m}. The force limit is Fmax⁡=2.5×105 NF_{\max}=2.5\times 10^5\ \text{N} and F≈KE/dF\approx \text{KE}/d. A packaging constraint requires d≤0.85 md\le 0.85\ \text{m}. Which design best minimizes force while meeting all constraints?
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