Differences

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--- 183_notes:model_of_a_wire [2015/09/19 11:20] – [Modeling the solid wire] caballero
+++ 183_notes:model_of_a_wire [2015/09/19 11:27] – [Modeling the solid wire] caballero
@@ Line 74: / Line 74: @@
 $$s = \dfrac{mg}{2k} = \dfrac{100N}{200N/m} = 0.5m$$
-When we attach a second 100N/m spring to the ball, the springs both stretch 0.5m. That is, the overall stretch of the spring-mass system is half of what it is with one spring. //In parallel, each spring stretches the same amount//.
+When we attach a second 100N/m spring to the ball, the springs both stretch 0.5m. That is, the overall stretch of the spring-mass system is half of what it is with one spring.
+//In parallel, each spring stretches the same amount//.
 == Modeling two side-by-side springs as one spring (effective spring constant) ==
@@ Line 92: / Line 94: @@
 $${k_{s,eff}} = \sum_i {k_i} = {100 N/m} + {100 N/m} = {200 N/m}$$
+This way of modeling end-to-end and side-by-side springs will be very useful for modeling [[183_notes:youngs_modulus|the compression and extension of real materials]].