wwww X = 0 (a) wwww A = -KAR (b) F = -kAx (c) Figure 7.7 (a) The spring exerts no force at its equilibrium position. The spring exerts a force in the opposite direction to (b) an extension or stretch, and (c) a compression.

College Physics
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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Consider a linear spring, as in Figure 7.7(a), with mass M uniformly distributed along its length. The left end of the spring is fixed, but the right end, at the equilibrium position x = 0, is moving with speed v in the x-direction. What is the total kinetic energy of the spring? (Hint: First express the kinetic energy of an infinitesimal element of the spring dm in terms of the total mass, equilibrium length, speed of the right-hand end, and position along the spring; then integrate.)

wwww
X = 0
(a)
wwww A = -KAR
(b)
F = -kAx
(c)
Figure 7.7 (a) The spring exerts no force at its equilibrium
position. The spring exerts a force in the opposite direction to
(b) an extension or stretch, and (c) a compression.
Transcribed Image Text:wwww X = 0 (a) wwww A = -KAR (b) F = -kAx (c) Figure 7.7 (a) The spring exerts no force at its equilibrium position. The spring exerts a force in the opposite direction to (b) an extension or stretch, and (c) a compression.
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