The Lone Wanderer needs to push an 80.0-kg desk a distance o…

The Lone Wanderer needs to push an 80.0-kg desk a distance of 4.00 m across a Vault floor to reach a stash of Nuka-Cola Quantum. The coefficient of kinetic friction is 0.400, making this feel like a Strength 9 challenge.   How much work does the Wanderer do to move the desk at constant speed?