Answer:
0 J
Explanation:
From the question, let us assume that a positive work was done in lifting the bucket down and a negative work was done in lifting the bucket up.
Going up
W = -Fd.................... Equation 1
Where W = work done, F = Force needed to lift the bucket, d = distance
Given: F = 35 N, d = 3.0 m
Substitute into equation 1
F = -35(3.0)
F = -105 N.
Coming Down
W = Fd
Given: F = 35 N, d = 3.0 m
W = 35(3.0)
W = 105 N.
During the process (going up and coming down)
ΔW = -150+105
ΔW = 0 J
Hence the work done by gravity during the process = 0 J
