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Yae Miteo
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Homework Statement
A block with mass m = 14 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4085 N/m after being compressed a distance x_1 = 0.546 m from the spring’s unstretched length. The floor is frictionless except for a rough patch a distance d = 2.6 m long. For this rough path, the coefficient of friction is μ = 0.43.
(This is one part of a multi-part problem. The current part is part 5.)
Instead, the spring is only stretched a distance x_2 = 0.162 m before being released.
How far into the rough patch does the block slide before coming to rest?
Homework Equations
[tex]F=-\int kxdx[/tex]
[tex]v^2 = v_o^2 + 2ax [/tex]
[tex]F=ma[/tex]
The Attempt at a Solution
using
[tex]v^2 = v_o^2 + 2ax[/tex]
solve for x
[tex]x = -\cfrac{mv_o^2}{2(F-f)}[/tex]
plug in F
[tex]x = \cfrac {mv_o^2}{2(k \int xdx - mg \mu)}[/tex]
but I'm not sure where to go from here.