Given:
The mass of the object, m=3.9 kg
To find:
The work done by gravity.
Explanation:
The work done by gravity does not depend on the path in which the object is brought from point A to point B. The work done depends only on the height difference between point A and point B.
From the figure, the height difference between point A and point B is h=2 m
The work done by the gravity when the object is moved from point A to point B is given by,
[tex]W=mgh[/tex]
Where g is the acceleration due to gravity.
On substituting the known values,
[tex]\begin{gathered} W=3.9\times9.8\times2 \\ =76\text{ J} \end{gathered}[/tex]
Final answer:
The work done by the gravity on the object is 76 J.
