Answer: Work that the motor of the crane do is 61122 joules.
Explanation:
Work is defined as the force resulting into displacement of an object.
[tex]w=m\times g\times h[/tex]
w = work done
m= mass of object = 334 kg
g = acceleration due to gravity = [tex]10ms^{-2}[/tex]
h = height of an object = 18.3 m
Putting in the values:
[tex]w=334\times 10ms^{-2}\times 18.3m=61122Joules[/tex]
Thus work that the motor of the crane do is 61122 joules