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Sagot :
The total work is done by the weight lifter who lifts a mass m at constant speed to a height h in time t, is (mgh)/t.
What is work done to lift an object?
The amount of energy which is required to lift a object at a height is known as the work done of lifting an object.
The work done to lift an object for a time period of t is given as,
[tex]W=\dfrac{mgh}{t}[/tex]
Here, (m) is the mass of the object, (g) is the acceleration due to gravity and (h) is the height.
It is given that a weight lifter lifts a mass m at constant speed to a height h in time t. Thus, the work done by the weight lifter is,
[tex]W=\dfrac{mgh}{t}[/tex]
Hence, the total work is done by the weight lifter who lifts a mass m at constant speed to a height h in time t, is (mgh)/t.
Learn more about the work done to lift an object here;
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