I am stuck on this physics question from masteringphysics... i have only 1 attempt left...
q. The crates of weight 1482N will move with speed 1.56m/s at the top of a ramp that slopes downward at an angle 22.4. The ramp will exert a 564N force of kinetic friction on each crate, and the maximum force of static friction also has this value. At the bottom of the ramp, each crate will come to rest after compressing a spring a distance x. Each crate will move a total distance of 7.45m along the ramp; Once stopped, a crate must not rebound back up the ramp.
thank you!

Question

shamim · Answer

Do u wanna know 
x=?

anonymous · Answer

oh, i forgot to type the actualy question!
Calculate the maximum force constant of the spring kmax that can be used in order to meet the design criteria.

Thank you so much!

shamim · Answer

Spring constant=k

shamim · Answer

Constant means the value of k can not change

shamim · Answer

Can u draw the whole situation?

anonymous · Answer

yes i drew the free body diagram.
i solved k=379.1/x^2
i dont know how to solve for x