How much work is needed to raise a 110-kg load of bricks 12m above the ground to a building under construction?

According to the law of conservation of energy, the work required equals the change in potential emergy.
To get the increase in potential energy, multiply the weight (M g) by the change in elevation (h). If M is in kg, g is in m/s^2 and h is in meters, the answer will be in Joules.

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