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susyq232

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**Equation for solving the coefficient of Kinetic friction HELP??**

Problem: A cable attached to a block of mass 9 kg pulls the block along a horizontal floor at a constant velocity. If the tension in the cable is 5.2 N, what is the coefficient of kinetic friction between the block and the floor?

Questions:I have tried to solve this but i really don't know where to begin.

Whats the equation to calculate the coefficient of Kinetic Friction?

Attempt: ok i know Mass= Friction/Gravity and gravity is 9.8,

u=friction(k)/Normal force

Fg= 9kg* (9.8)= 88.2 kg

Ef=Ma = 5.2n +Ffk= 9kg * o m/s^2 = Ffk=-5.2 n

[uk]= 5.2/100 = 0.052 m/s^2

is this right? so confused

i really just don't have any idea about the the equation...HELP??

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