The crane lifts a load weighing 1.5 tons to a height of 4 m. What kind of work will it do?

given:
m = 1500kg
S = 4 meters
find: crane job
Decision:
work = strength * distance
force = 1500kg * 10m / s = 15000n
dist = 4m
work = 15000n * 4m = 60000joules = 60KJ



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