Question

A crane lifts a 425 kg steel beam vertically upward a distance of 614.4 m

How much work does the crane do on the beam if the beam accelerates upward at 1.8 m/s2? Neglect frictional forces.

Answer 1

PHYSICS

*not sure about the answer but here we go*

Mass = 425 kg

distance = 614.4 m

acceleration = 1.8 m/s²

Answer :

Count Force first.

`f \: = m \: * a`

F = 425 × 1,8

F = 765 N ✅

Now let's count Work.

`w \: = \: f \: * s`

W = 765 × 614.4

W = 470016 J ✅