Arturo O. answered • 12/22/19
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To answer this question, you must also know the coefficient of kinetic friction μk, which is not stated in the problem. You set the normal force N equal to the weight of the object, and then get the distance d that the object is pushed by setting the work W equal to the product of the friction force f and the distance d.
W = fd
f = μkN (friction force in terms of coefficient of kinetic friction and normal force)
W = μkNd
d = W / (μkN)
Plug in the work W, the weight for N, and the coefficient of kinetic friction μk, and get d in feet.
Bri. B.
This is great help. It is surprising to see that you know how to do this stuff. But the problem is, even with the equation there, I still do not know how to do it! I am only in 7th grade and they are making me do this, so if I could get a little more help, that would be great! Thanks03/04/21