Example 2: Calculating Time from Power A typical healthy adult human can provide 150 W of output power. You have
to push a 65 kg box of cereal (at rest) along the floor, and the coefficient of
friction with the floor is 0.37 (your shoes have a coefficient of friction of 0.84
with the floor). How much time should it take you to push it 3 m along the
floor at maximum power? Assume you push at constant speed after initially
starting to move it.