posted by annonomus on .
A wood crate is sitting on a concrete floor. The crate has a mass of 7.4719x10^2 kg. The crate has an applied force in the x direction and moves with constant velocity in that direction. What is the applied force acting on the crate, to three significant figures, if ìs is 6.678x10^-1 and ìk is 3.752x10^-1?
"...if is is ..." I dontunderstand.
at constant velocity, the applied force is equal to friction