If the mass of the roller coaster cart is 20,000 kg and it is moving toward location X at a velocity of 10 m/s, what is its kinetic energy?

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.