Kenny, who has a mass of 15 kg, slides down a friction-less slide that is 3.2 m tall. Cartman, who has a mass of 85 kg, slides down the same slide.
A. What speed does Kenny reach at the bottom of the slide?
B. What speed does Cartman reach the bottom of the slide?
C. Kyle slides down the same slide. What speed does Kyle reach at the bottom of the slide? Explain.