Question

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?

Answer 1

"...if is is ..." I dontunderstand.

at constant velocity, the applied force is equal to friction

frictionforce=mu*weight=mu*mg