Asked by Jack


Once a 15 kg crate is in motion on a horizontal floor, a horizontal force of 51 N keeps the crate moving with a constant velocity.
The acceleration of gravity is 9.81 m/s What is µk, the coefficient of kinetic friction, between the crate and the floor?
Answered by drwls
51 N/(M*g) = 0.347
Answered by Guy
Drwls is wrong
Answered by Guy
Mass = 15kg
Ff= 51N
A= 9.81
Formula fg=m g, fg = 15 x 9.81, fg = 147.15
Next step, Ff = uFn, 51 = 147.15u, u= 0.3465
Answered by Guy
Guy here again, be sure to enter your answer without ROUNDING
Answered by Drwls
you're an idiot
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