9:18 & @ d - QN= .l 78%m X @& SOLVED: A 200 k... I:I

9:18 & O a SOLVED: A 200 k... numerade.com Sign up 22 people are viewing now A 200 kg roller coaster starts from rest at the top of a hill 50 m above... A 200 kg roller coaster starts from rest at the top of a hill 50 m above the ground. It rolls toward the ground without any friction until it reaches ground level. Then the brakes are applied, stopping the coaster after a 30 m roll along flat ground. Assume the acceleration from gravity is 10 m/sn2. How much work was done by the brakes? a. -I.OxlOA5 J b. -1.6xlOA4 J c. -I.OxlOA4 J Show less Submitted by Stephanie D. Aug. 17, 2021 06:15 a.m. Ask Ace Anything Explain the concept Tips for this question o Common mistakes