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SCAN0004

# SCAN0004 - 9 The driver on a car traveling 100 km/h has a...

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Unformatted text preview: 9. The driver on a car traveling 100 km/h has a human reaction time of 1.0s in order to . lly apply the brakes for an emergency stop on the highway. ' EgLWQ a. Calculate the stopping distance for a car with a = - 5.0 m/sz. b. Calculate the stopping distance for a car with a = — 9.0 m/sz. m} L, y: yon/0+ +vza+7~ v=vo+a+ ﬁt Owe:- ’278mlS-t- (-5m132)f " it: Omts—Z‘i.‘am\s 2: 5.5M Stocrﬂﬁ ‘Bmt’a’zr ﬂ 1 y —, (2-7 .smps)t6.cstos)+ Vz\'5m§§1}(§»&a§ X: 155,; 77m 177‘ in '2 I 10. A speeding motorist passes a stopped police car. 2.0 s after. the moment he passes, the police car begins accelerating at a constant rate of 4.4 m/sz. The motorist, unaware that he is being chased, continues at constant speed until the police car catches him 14 3 later. How fast is the motorist going? ﬂ UATQ- V: Votat \ \/ 3 O + WAN ﬁZMQ‘é) “mgwmmiﬁs \/ : 5.2.‘Eaml 5 s2: ...
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