Textbook with spring sliding, use work-energy thm to solve

[makeAwish]

A 2.20kg textbook is forced against a horizontal spring of negligible mass and force constant 220 N/m, compressing the spring a distance of 0.270 m. When released, the textbook slides on a horizontal tabletop with coefficient of kinetic friction 0.30. Use the work-energy theorem to find how far the textbook moves from its initial position before coming to rest.


The answer is 1.2m. Can someone help me solve?

Thanks.


My attempt was:


change in KE + change in Elastic potential energy = -friction x distance
0 + (-0.5k(x^2)) = - 0.30(mg)(L)
L = 2.48m

 

[makeAwish]

Oh. I had a careless mistake! Ahh. Okay i know le. Haha Thanks.