A 2.2 kg block is placed against a spring on a frictionless 25o incline (Fig. 8-37). The spring, whose spring constant is 27.6 N/cm , is compressed 27.6 cm and then released.(adsbygoogle = window.adsbygoogle || []).push({});

(a) What is the elastic potential energy of the compressed spring?

(b) What is the change in the gravitational potential energy of the block Earth system as the block moves from the release point to its highest point on the incline?

(c) How far along the incline is the highest point from the release point?

For part a) i got 105.122 J and that was right. I'm having trouble with parts b) and c)

I don't understand how to find the height of the incline. i know u=mgh

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# Homework Help: Spring on incline

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