Question

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?

Answer 1

Answer: I believe its W=8.9

Step-by-step explanation:

i d k

Answer 2

Work done, W = 98 J

Step-by-step 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 :

`W=F* d`

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

`W=m* g * h`

`W=5* 9.8 * 2`

W = 98 J

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