Answer:
The work done by the crane on the beam is .
Explanation:
Given that,
Mass of the steel beam, m = 425 kg
Acceleration of the beam in upward direction,
Let the distance covered by the crane is 117 m, d = 117 m
We need to find the work done by the crane on the beam. The net force acting on the crane is given by :
Let W is the work done. It is given by :
So, the work done by the crane on the beam is . Hence, this is the required solution.