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.

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

answer: 31, 5556. 952 seconds