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becksftw
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Homework Statement
A horizontal uncompressed spring of constant k= 3 N/m and negligible mass lies on a frictionless floor. The right end of the spring rests against a vertical wall. A block of mass m=0.180 kg with initial velocity v0= 1.0 m/s is incident to the spring from the left. The spring in compressed and the block comes momentarily to rest.
a. Calculate the maximum compression x of the spring. (Did this, x= 0.245m)
b. Determine the velocity v of the block when the spring compression x'= 0.150m (Did this, v= 0.790 m/s)
*****Here is where I'm stuck
The initially frictionless floor is now replaced by a floor that has a coeff. of kinetic friction mu= 0.11
c. Calculate the new maximum compression x'' of the spring when the block comes momentarily to rest.
d. Determine the amount Eth of thermal energy produced in part c by frictional force.
I think I know how to do part d once I get c, but I've been stuck on part c for some time now.
Homework Equations
Fd= (Delta Emec) + fkd
So, I know fk= 0.194
and deltaE= .09 ?
I'm not sure how to approach the problem, and its very important that I understand how to for my exam coming up friday. Any help is appreciated, thanks!