Weegy: The answer is C. 4,586. [ use the formula W = mgs
W stands for work done in joules
m stands for mass of the object
g stands for gravity
s stands for the distance the object is lifted
W = mgs
W = 78kilograms•9.8m/s2•6meters
W = 4586.4 J (joules)
answer would be 4,586.4 J
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