Simple Problem, I think theres not enough information

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The problem involves a block sliding on a frictionless track before encountering friction at a higher level, where it eventually stops. The initial speed is 6.0 m/s, the height difference is 1.2 m, and the coefficient of kinetic friction is 0.60. The discussion highlights that while the initial velocity at the higher level has been calculated, the weight of the block is necessary to determine the frictional force and the stopping distance d. The user initially believed the problem was unsolvable due to missing information but later realized they had overlooked a variable. The conversation emphasizes the importance of all variables in solving physics problems.
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Homework Statement



In Figure 8-50 (nothing important other than 1.2 m height difference, the higher level is completey flat), a block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed v0 is 6.0 m/s, the height difference h is 1.2 m, and the µk is 0.60. Find d.

Vo = 6.0 m/s
h = 1.2 m
µk = 0.60
m = ? (not given)

Homework Equations



Conservation of energy to get initial velocity upon reaching the higher level (this is already done and verified)

Then for the friction force we need the normal force (in this case weight of block), which is not given...

The Attempt at a Solution



So I already have the initial velocity at the higher level done and verified that part is correct, but I don't think the distance d it takes to come to a stop can be found since they never gave the weight of the block (so unknown magnitude of friction force).

Am I missing something here?
 
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oh nvm i randomly dropped a variable -____-
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
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