(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

13. A box of mass m is released from rest at point A, the top of a long, frictionless slide. Point A is at height H above the level of points B and C. Although the slide is frictionless, the horizontal surface from point B to point C is not. The coefficient of kinetic friction between the box and this surface is µk, and the horizontal distance between points B and C is x.

a. Find the speed of the box when its height above point B is ½H.

b. Find the speed of the box when it reaches point B.

c. Determine the value of µk so that the box comes to rest at point C.

d. Now assume that points B and C were not on the same horizontal level. In particular, assume that the surface from B to C had a uniform and upward slope so that point C were still at a horizontal distance of x from B but now at a vertical height y above B. Answer the question posed in part (c).

3. The attempt at a solutionI tried to use the equation D= (Vi+Vf)*t/2 but im missing the distance

1. The problem statement, all variables and given/known data

2. Relevant equations

D=(Vi+Vf)T/2

3. The attempt at a solutionI tried using the equation D=(Vi+Vf)T/2 but i dont have the dictance(D)

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# Homework Help: Finding Vf when you dont have distance and only height without numerical value

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