Question

a 56-lb mass rests on a horizontal surface. the force needed to move it along the surface is 20lb determine the coefficient of friction

Answer 1

\[F_f = \mu * F_N\]

Answer 2

@JFraser that is the only formula im going to use sir?

Answer 3

what does it mean?

Answer 4

@JFraser i mean can you be more specific sir? sorry for that..

Answer 5

i'm asking you, what do the pieces of that equation mean?

Answer 6

@JFraser the Ff=μ∗FN ; the two F are force and the u is the coefficient friction?

Answer 7

true, now solve for the coefficient