What work must be done to lift a 20kN steam hammer to a height of 2 meters?
| December 21, 2020 | education
The work expended is found by the formula: A = Fs, where F is the force, s is the distance traveled.
The force in the task is the weight, and the distance is the height.
First, let’s convert all units of measurement to SI units:
20kN = 20,000 N
Means: A = 20,000 N * 2 m = 40,000 J = 40 kJ
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