Suggested Answer
The kinetic energy of the roller coaster is 1000J.Kinetic Energy is the energy of an object because the object is in motion. Force must be applied to the object to apply acceleration on the object. When a person applies force work is done and as the work is done energy is transfered to the object. Given, m=20kgv=10m/sKinetic Energy=0.5×m×v²=0.5×20×(10)²=1000JThus, the kinetic energy of the roller coaster is 1000J.I hope this answer helps.To learn more about kinetic and potential energy,https://brainly.com/question/12669551https://brainly.com/question/15764612