a man loads 1,000 sacks of flour into a truck in 30.0 minutes. Each sack has a mass of 20.0kg and the man must lift each sack 1.00m from the cart up onto the truck bed. how much power did the man develop.
power = work / time
p = (1000 * m * g * h) / (30.0 min * 60 s/min)
p = (1000 * 196)j / 1800 s (watts)