Can you help me understand this Algebra question?2 attachmentsSlide 1 of 2
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Foundations of Mathematical Reasoning Version 3.0 (2020) Student Pages Practice Assignment 13.D 1) Consider a situation in which the coefficient of friction is 𝑓 and the roadway grade is 𝐺. Let 𝑉0 be in km/h. Which of the following expressions represents the simplified form of the formula using these values? There may be more than one correct answer. a) b) 𝑉2 0 𝑑 = 2(32.2𝑓𝑡/𝑠𝑒𝑐 2 )(𝑓+𝐺) 𝑓𝑡 𝑑= c) 𝑑= d) 𝑑= (𝑉0 (𝑉0 𝑘𝑚 2 1ℎ𝑟 2 1 𝑚𝑖𝑛 2 1000𝑚 2 3.28ft 2 ) ( ) ( ) ( ) ( ) ℎ𝑟 60 𝑠𝑒𝑐 60 𝑠𝑒𝑐 1𝑘𝑚 1𝑚 32.3𝑓𝑡 2( )(𝑓+𝐺) 𝑠𝑒𝑐2 𝑘𝑚 2 1000𝑚 2 3.28ft 2 ) ( ) ( ) ℎ𝑟 1𝑘𝑚 1𝑚 9.8𝑚 2( 2 )(𝑓+𝐺) 𝑠𝑒𝑐 0.01289𝑉02 𝑓+𝐺 𝑓𝑡 Questions 2 and 3: A car is traveling 80 km/h on a road with 5% grade. 2) Plug in the values and perform the possible calculations to write the simplified form of the formula for the braking distance in meters in this situation
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