Question

Please help. I'm stuck. Also, is what I have so far right?

Quiz 4 Bonus 2 [12 % points] You have a spring whose relaxed length is L with stiffness k. You attach one end to the ceiling and hang a block of mass m from the bottom end. Next you pull rapidly downward on the block and release the block when the length of the spring is Li, and the block has a downward sneed of v. A short time later the block has moved downward so that the length of the spring is now L2, and the downward speed is v2. List your Knowns and Find, and draw two sketches of the system at (1) point 1 and (2) point 2. Make sure to a. include the symbols explicitly mentioned in the problem as well as the usual symbols found in any pictorial diagram. Knowns Fyengs -kL-o) 201-0711-1 4.L Take the Universe as the system, start from a fundamental principle, and write an equation that could be used to b solve for v2. Use the names/symbols given in the problem statement and/or those found in your equation sheet. Do not bother doing the algebra to solve for v2. 4Er i 2 2 2 V=V2[$v*3&-4)3(b4) [1-1-11C)S CAA Quiz 4 Bonus Take the block+spring as the system, start from a fundamental principle, and write an equation that could be C. used to solve for v2. Use the names/symbols given in the problem statement and/or those found in your equation sheet. Do not bother doing the algebra to solve for v2. 4 Exy e W+ UioUspring Explain briefly in words the effects on the block+spring system of objects outside the system. d.

Answer 1

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