The spring in the figure (a) is compressed by length delta x . It launches the block across a frictionless surface with speed v0. The two springs in t

Carol Gates 2021-02-23 Answered

The spring in the figure (a) is compressed by length delta x . It launches the block across a frictionless surface with speed v0. The two springs in the figure (b) are identical to the spring of the figure (a). They are compressed by the same length delta x and used to launch the same block. What is the block's speed now?
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Expert Answer

Nathanael Webber
Answered 2021-02-25 Author has 117 answers
The energy stored in the spring is 0.5kx2 this must equal the kinetic energy of the released block.
0.5mv02=0.5kx2
v0=xx2km
The speed from two springs is 2 times the speed with one spring.
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