The force needed to lift an object is equal in size to the gravitational force on the object. how much work is done in lifting an object that has a mass of 5kg a vertical distance of 2m?

Work done, W = 98 J

Explanation:

It is given that,

Mass of the object, m = 5 kg

vertical distance covered by it, h = 2 m

To find,

Work done in lifting the object.

Solution,

The force needed to lift an object is equal in size to the gravitational force on the object. Let W is the work done to lift an object. It is given by :

F is the force acting on the object, F = mg

W = 98 J

So, the work done by the object is 98 joules.

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