How to Find a Skateboarder's Speed Down an Inclined Ramp?

[Vaalron]

Newt's 2nd Law--Non-Equilibrium

Homework Statement

A student is skateboarding down a ramp that is 6.0m long and inclined at 18 degrees with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 2.6 m/s. Neglect friction and find the speed at the bottom of the ramp.

$$\Delta$$X = 6 meters
$$\theta$$= 18 degrees
v$$_{}o$$= 2.6 m/s
v$$_{}f$$= ?

Homework Equations

v$$_{}f$$²= v$$_{}o$$² + 2ax

The Attempt at a Solution

v(f)²= 6.76+ 12a


I have no idea what I'm doing. Could I get a push in the right direction? Thanks.

 

[fluidistic]

For this problem I'd use the conservation of energy law. You just have to find the height of the ramp and you can write down the equation.