# Translational velocity help

Translational velocity help!!!

## Homework Statement

A ball is on an incline with µ = 30±. Its initial height is 1.5 m. When
it reached the bottom of the incline, what is the ball’s translational (linear)
velocity? [Use conservation of energy to solve.]

## Homework Equations

r= s$$\vartheta$$

## The Attempt at a Solution

r= (1.5)sin(30)

I am confused with this problem because a radius was not given and I am not sure if I started it right...