Question

Consider this equation,

KE = ½ mv2
Which of those variables is changing as the skater moves up and down the track?

Answer 1

V is changing

`as \: skater \: moves : \: there \: is \: displacement \\ from \: third \: equation \: of \: motion \\ {v}^(2) = {u}^(2) + 2as \\ {( \delta \: V})^(2) = 2as \\ V \: \alpha \: s`