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Unformatted text preview: in the length of the spring. (b) Now imagine stretching the spring a little longer. To describe this, draw a clear picture of the extended spring. Set up your coordinate system so that y goes upward, but put y = 0 at the spot where the mass was at rest in part 1a. Make a free-body diagram showing the forces on the mass, and notice the sum of just two of the forces, the weight combined with k Δ ` . What is the net force on the mass, in terms of y ? (c) You extend the mass to y =-1 cm, and release it from rest. At what y does it reach its maximum speed? How long does it take from the time of the release to reach the maximum speed? What is the value of the maximum speed? 2. K&K Problem 2.31 3. K&K Problem 3.1 4. K&K Problem 3.4 5. K&K Problem 3.8...
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This note was uploaded on 08/06/2008 for the course PHYS 31 taught by Professor Nelson during the Winter '06 term at UCSB.
- Winter '06