How much work does it take to raise a #5 kg # weight #14 m #?

1 Answer
Jul 5, 2016

Work is the amount of energy required to move an object using force (in this case to overcome gravity) through a distance (in this case 14 m).


The force of gravity is equal to the mass of the object times the acceleration of gravity #(g = 9.81 m/(s^2))#.

If we use SI units for everything, the answer will also come out in SI units of energy (joules):

#w = m times g times d = 5 kg times 9.81 m/(s^2) times 14 m = 687 J#