In: Physics
You and your friend are tasked with moving boxes into a storage
unit. After becoming tired,
your friend decides it’s best to push the boxes on the level
concrete floor. You observe them
pushing at a downward angle of 25 degrees below the horizontal on a
46 kg box. If the coefficient of
kinetic friction between the cardboard and concrete is μk = 0.18,
what force are they
exerting to keep the box moving at a constant speed?
Draw a free body diagram if needed.