How do you find magntitude of Force one must apply?

Question

a factory worker pushes a crate of mass 29.5 kg, a distance of 4.8 m along a level floor at constant velocity by pushing horizontaly on it. the coefficient of kinetic friction between the crate and floor is is .258

what magnitiude of force must the worker apply and how much work is done on the crate by this force?

Answer 1

depends on the constnt speed u aqiured...plz provide it otherwise answer wont come

Answer 2

Figure out the force to overcome the friction, then just multiply that force times the distance to get the work.