Answer:
150 J
Explanation:
Work: This can be defined as the product of force and distance. The S.I unit of work is Joules (J)
The work done in lifting the crate = Force × distance.
W = F×d .............................. Equation 1.
Where F = force, d = distance, W = work done in lifting the crate,
Given: F = 100 N, d = 1.5 m.
Substituting these values into equation 1
W = 100(1.5)
W = 150 J.
Thus the work done in lifting the crates to that height is 150 J