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MechanicsQuestion and Answers: Page 10

Question Number 169205    Answers: 0   Comments: 0

(√(91))

$$\sqrt{\mathrm{91}} \\ $$

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Question Number 161194    Answers: 0   Comments: 1

TAKEN FROM REAL LIFE if I try to walk into a shop through a super clean closed glass door and get myself a bloody nose then what′s the value of the brake acceleration when we assume 1) my walking speed is 7km/hr 2) the crumple zone of my nose is 1/2′′ 3) the brake acceleration is constant

$$\mathbb{TAKEN}\:\mathbb{FROM}\:\mathbb{REAL}\:\mathbb{LIFE} \\ $$$$\mathrm{if}\:\mathrm{I}\:\mathrm{try}\:\mathrm{to}\:\mathrm{walk}\:\mathrm{into}\:\mathrm{a}\:\mathrm{shop}\:\mathrm{through}\:\mathrm{a}\:\mathrm{super} \\ $$$$\mathrm{clean}\:\mathrm{closed}\:\mathrm{glass}\:\mathrm{door}\:\mathrm{and}\:\mathrm{get}\:\mathrm{myself}\:\mathrm{a} \\ $$$$\mathrm{bloody}\:\mathrm{nose}\:\mathrm{then}\:\mathrm{what}'\mathrm{s}\:\mathrm{the}\:\mathrm{value}\:\mathrm{of}\:\mathrm{the} \\ $$$$\mathrm{brake}\:\mathrm{acceleration}\:\mathrm{when}\:\mathrm{we}\:\mathrm{assume} \\ $$$$\left.\mathrm{1}\right)\:\mathrm{my}\:\mathrm{walking}\:\mathrm{speed}\:\mathrm{is}\:\mathrm{7km}/\mathrm{hr} \\ $$$$\left.\mathrm{2}\right)\:\mathrm{the}\:\mathrm{crumple}\:\mathrm{zone}\:\mathrm{of}\:\mathrm{my}\:\mathrm{nose}\:\mathrm{is}\:\mathrm{1}/\mathrm{2}'' \\ $$$$\left.\mathrm{3}\right)\:\mathrm{the}\:\mathrm{brake}\:\mathrm{acceleration}\:\mathrm{is}\:\mathrm{constant} \\ $$

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