Question

At a playground, a 20.3-kg child plays on a slide that drops through a height of 2.15 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -351 J on the child. What is the child's speed at the bottom of the slide?

Answer 1

Just use the equation
\[\Large PE_{1}+KE_{1}+W_{\text {(non conservative)}}=PE_{2}+KE_{2}\]