If your head weighs about 50N and you are travelling at 30 km/h, your head will exert about 150 N of force in a collision. Use two mathematical calculations to show me that it is better to hit an airbag rather than to hit the dashboard. Assume your whole face has an area of 300cm 2and that your forehead has an area of 30 cm 2 . Show all of your work including formulas, substitutions and answers, with units.
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