- #1
Scatteredheroes
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Homework Statement
A 2kg block slides down a 3 m long ramp that is inclined at 40 degrees. The coefficient of friction is .2
What is the velocity when it hits the bottom of the ramp?
Homework Equations
Kinetic = 1/2 mv^2
Potential = mgh
Work of friction: Fnμ*(displacement)
The Attempt at a Solution
1/2mv^2 + mgh = 1/2mv^2 + mgh - Fnμ*(displacement)
v = 8.237.
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I don't think that's right, because I didn't take into account the angle. What do I need to do?