- #1
jemstone
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Homework Statement
The spring in the figure (link 1) (a)is compressed by length [tex]\Delta[/tex]x. It launches the block across a frictionless surface with speed v0. The two springs in the figure (link 2) (b) are identical to the spring of the figure . They are compressed by the same length [tex]\Delta[/tex]x and used to launch the same block. What is the block's speed now?
picture1: http://session.masteringphysics.com/problemAsset/1000762/5/knight_Figure_10_38a.jpg
picture 2: http://session.masteringphysics.com/problemAsset/1000762/5/knight_Figure_10_38b.jpg
Homework Equations
Fsp = -k[tex]\Delta[/tex]s
Us = 1/2 k([tex]\Delta[/tex]s)2
K = 1/2 mv2
The Attempt at a Solution
I'm not sure what the effect of two springs would be, but in terms of V0 I feel like it might be 2V0, but that seems to easy.