Newton's Law of Gravitation States That Two Bodies with Masses $m _ { 1 }$

question 40

Short Answer

Newton's Law of Gravitation states that two bodies with masses $m _ { 1 }$ and $m _ { 2 }$ attract each other with a force
$$F = G \frac { m _ { 1 } m _ { 2 } } { r ^ { 2 } }$$
where $r$ is the distance between the bodies and $G$ is the gravitation constant. If one of bodies is fixed, find the work needed to move the other from $r = l$ to $r = g$ .

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