(adsbygoogle = window.adsbygoogle || []).push({}); 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??

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Equation for solving the coefficient of Kinetic friction HELP?

**Physics Forums | Science Articles, Homework Help, Discussion**