Question

to raise a 200 kg steel beam to a height of 10 metre on the bridge feel built requires work of​

Answer 1

Answer:

Work is doen against the gravitational force so the work done should be equal to the change in the potential energy

W = mgh = 200kg x 9.8m/s² x 10m = 19600J

Answer 2

The work done required to raise a steel beam is 19.6 kJ

Explanation:

It is given that,

Mass of the steel beam, m = 200 kg

It is raised to a height of 10 meters. We need to find the work done required to raise a steel beam. It is given by :

$W=F\times d$

$W=m\times g\times d$

$W=200\ kg\times 9.8\ m/s^2\times 10\ m$

W = 19600 J

or

W = 19.6 kJ

So, the work done required to raise a steel beam is 19.6 kJ. Hence, this is required solution.

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