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## Homework Statement

Suppose a skateboarder is coasting initially at 7.5 m/s to the right across flat, rough ground (coefficient of friction = 0.125). How far will the skateboarder go before stopping. (Kinematics and forces will be used in combination)

## Homework Equations

v

_{2}=v

_{1}+at

v

_{2}=v

_{0}

^{2}+2ad

v=d/t

d=v

_{0}t+(1/2)at

^{2}

F=ma

## The Attempt at a Solution

I'm not certain how to approach the question. The question doesn't state what the mass is, nor any applied force apart from the initial velocity. I know that the final velocity is 0.