Calculate the workdone in moving a body of mass 1000 kg from a height 2 R to a height 3 R above the surface of the earth.
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1
Answer:
mg(h2-h1)
1000×10(3r-2r)
10000r
10000×6400
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0
Given :
Mass of body , m = 1000 kg .
To find :
The work done in moving a body from a height 2 R to a height 3 R .
( Here, R is radius of earth )
Solution :
We know , work done is given by :
...... ( 1 )
Here , F is the gravitational force and equal to ,
Therefore , work done is :
Putting all value in above equation .
We get :
Hence , this is the required solution .
Learn More :
Gravitational
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