Just need a simple logic check here. Let's say a block of 2kg is positioned on an incline of 53 degrees. 4m from the block is a spring with a k=70N/m. the coefficient of kinetic friction is 0.36. How fast is the block moving when it hits the spring? How far is the spring compressed.(adsbygoogle = window.adsbygoogle || []).push({});

Ok, so find the height from the block to the spring (this is <4m), and say Ugrav = Wfriction + KE, to answer the first part. Then, that KE = Uspring + Wfriction to find the compression. Now, Wfriction would be Ff(x), where x is the compression of the spring. Yes? Or, would KE = Uspring be the correct way?

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# Homework Help: Work Energy Friction

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