Gravitational Work on Inclined Plane

[deleted388502]

TPRHSW has confused me profusely on this; is the work done by gravity on a block on an inclined plane mgsintheta x distance traveled, or is it mgh? The questions in the book seem to give differing answers so I'm a bit confused.

Thanks!

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[Cawolf]

Same thing.

h = x sin (theta)

edit: x = distance traveled