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## Homework Statement

A skateboarder at a skate park rides along the path shown in (Figure 1) .If the speed of the skateboarder at point A is v=1.3m/s, what is her speed at point B? Assume that friction is negligible.

## Homework Equations

u

_{i}+k

_{i}=u

_{f}+k

_{f}

u=mgh

k=1/2mv

^{2}

## The Attempt at a Solution

m(9.8x2.7)+1/2m(1.3)

^{2}=m(9.8x1)+1/2mv

_{f}

^{2}

m(26.46+.845)=m(9.8+.5) mv

_{f}

^{2}

v

_{f}=√((26.46+.845)/(9.8+.5))

answer=1.6 m/s

The answer is wrong. Can somebody please tell me what I am doing wrong? Thanks!

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