Optimize Designs for Collision Safety · Grade 11 Physics

Grade 11 Physics Quiz

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MOTION AND STABILITY

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Engineers compare four restraint-force patterns. Each pattern supplies an impulse of

1800\ \text{N}\cdot\text{s}

and brings the same test dummy to the required final speed. Pattern A provides a constant force of

12\ \text{kN}

for

0.15\ \text{s}

. Pattern B increases linearly from zero to

24\ \text{kN}

over

0.15\ \text{s}

. Pattern C provides a constant force of

9\ \text{kN}

for

0.20\ \text{s}

. Pattern D increases linearly from zero to

15\ \text{kN}

over

0.24\ \text{s}

If all four patterns fit within the available occupant travel distance, which pattern best minimizes the peak force while still providing the required impulse?

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