A2L Item 100
Consider the two situations shown above. The springs are identical and are compressed the same amount, but the masses are different with M > m. The surfaces they sit on have the same non-zero coefficient of friction. Both start from rest. Which mass has the largest speed when the spring reaches its relaxed length?
- m
- M
- Both have the same speed.
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This material is based upon work supported by the National Science Foundation under grant number ESI-9730438. The opinions, findings, conclusions or recommendations expressed herein are those of the authors and do not necessarily reflect the views of the National Science Foundation.
Assessing-to-Learn by William J. Gerace, William J. Leonard, Robert J. Dufresne, and Ian D. Beatty is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.
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