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## Homework Statement

A 5 kg block is placed near the top of a frictionless ramp, which makes an angle of 30o degrees to the horizontal. A distance d = 1.3 m away from the block is an unstretched spring with k = 3000 N/m. The block slides down the ramp and compresses the spring. Find the maximum compression of the spring.

## Homework Equations

mgh = PEgravitational

(0.5)kx^2 = PEspring

## The Attempt at a Solution

Since energy is conserved, i set them equal to one another, with h = sin(30)*1.3. x gives 0.146m as maximum compression. Webassign doesn't take this as the right answer. I tried all numbers from 0.01 - 1.99, none are the right answers. This question is making me want to smash my computer. (Also, I tried negative values too.)