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Answer on Question #72201-Physics-Other A 8000-N car is traveling at 12m/s along a horizontal road when the brakes are applied. The car skids to a stop in 4.0 s. How much kinetic energy does the car lose in this time? Solution The weight of a car is 𝑊 = 𝑚𝑔. The kinetic energy does the car lose in this time is 𝐾=
𝐾=
𝑚𝑣 2 𝑊𝑣 2 = 2 2𝑔
(8000)122 = 59 𝑘𝐽. 2(9.8)
Answer: 59 kJ.
Answer provided by AssignmentExpert.com
𝐾=
𝑚𝑣 2 𝑊𝑣 2 = 2 2𝑔
(8000)122 = 59 𝑘𝐽. 2(9.8)
Answer: 59 kJ.
Answer provided by AssignmentExpert.com
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