A crane lifts a 425 kg steel beam vertically a distance of How much work does the crane do on the beam if the beam accelerates upward at 1.8 m/s2? Neglect frictional forces

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.

pe = weightxheight = 2000x1000=2,000,000joules

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.