h3llokitty h3llokitty 17-12-2020 Physics contestada please i’m begging literally anyone to help me with this. it was due 30 minutes ago a roller coaster travels 6 meters in 3 seconds what is thr kinetic energy of the coaster if its 250 kg a. 14700 J b. 4500 J c. 750 J d. 500 J