Question: When it crashes into a bridge support that does not move, a car goes from (80 mathrm{~km} / mathrm{h}) to 0 in (1.23 mathrm{~m}). (a)
When it crashes into a bridge support that does not move, a car goes from \(80 \mathrm{~km} / \mathrm{h}\) to 0 in \(1.23 \mathrm{~m}\).
(a) What is the impulse delivered to the \(70-\mathrm{kg}\) driver by the seat belt, assuming the belt makes the driver's motion identical to the car's motion?
(b) What is the average force exerted by the belt on the driver?
(c) If the driver were not wearing the seat belt and flew forward until he hit the steering wheel, which stopped him in \(0.0145 \mathrm{~s}\), what would be the average force exerted by the steering wheel on him?
(d) Would he be likely to survive the crash described in part \(c\) ? Justify your answer by comparing the force exerted by the steering wheel on the driver to the gravitational force exerted on him.
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To solve this problem we can use the principles of impulse and momentum as well as Newtons second law Given Initial velocity of the car vi 80 textkmh ... View full answer
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