How much work does a weightlifter do when she moves a 100 kg weight 1.5 m?

Explanation:

Given that,

Mass the weight lifter want to lift is 100kg

M = 100kg

And the lifter will raise it to height of 1.5m

h = 1.5m

We want to find the work done by the lifter.

The workdone by the lifter is the gravitational potential work

The workdone by lifting a body is calculated using

Work done. = force × distance

In this case, the force is the weight of the body and it is calculated using

W = mg

Where g = 9.81m/s²

The distance is the height the body is raise

Then,

The work done becomes

W = mgh

W = 100 × 9.81 × 1.5

W = 1471.5 J

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!

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