An object is lifted up. Work is done by the applied force and the object moves upwards. Force and gravity is also acting upon the object. Wch force is doing positive work.Why
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We know very well that weight of the body is the force which is attracted toward the centre of the earth.
we also know that weight of the body can be either positive , negative or zero.
it will be positive when force will be applied towards the centre of the earth.
it will be zero when the position of the object will be at the centre of the earth.
finally it will be negative when the force will be applied against the force of gravitation.
In the last case the weight of the body will be negative.
And in this situation if we apply force then it will cover some distance which will be also negative and a time will come at which it will come again on the surface of the earth and the weight of the body will come to the zero due to the high gravitational force of the earth in comparison to the body.
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we also know that weight of the body can be either positive , negative or zero.
it will be positive when force will be applied towards the centre of the earth.
it will be zero when the position of the object will be at the centre of the earth.
finally it will be negative when the force will be applied against the force of gravitation.
In the last case the weight of the body will be negative.
And in this situation if we apply force then it will cover some distance which will be also negative and a time will come at which it will come again on the surface of the earth and the weight of the body will come to the zero due to the high gravitational force of the earth in comparison to the body.
if u like this answer then don't forget to comment me.
Hope u will be satisfied by this.☺️☺️☺️
Read more on Brainly.in - https://brainly.in/question/3234649#readmore
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