Question

If a 75-kg skater starts his skate at 8.0m, at his lowest point (height = 0), what is his velocity?

Answer 1

I think this question is missing some information

Answer 2

presumably you mean velocity at the bottom

work out potential energy at the top, disregard friction and make it all into kinetic energy at the bottom

Answer 3

\[ mgh=\frac{1}{2} mv^2 \rightarrow v= \sqrt{2gh}\]

Answer 4

sub g=9.8, h=8. Put into a calculator,