posted by Carden .
At a playground, a 18.7 kg child plays on a slide that drops through a height of 2.07 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -318 J on the child. What is the child's speed at the bottom of the slide?
I have used v = sgrt 2gh and 1/2mv2 but to no avail.
I HAVE THE ANSWER. THANK YOU