Relative Distance in Free Fall – Rankers Physics
Topic: Kinematics
Subtopic: Relative Motion in One Dimension

Relative Distance in Free Fall

Two bodies are held separated by \(9.8\text{ m}\) vertically one above the other. They are released simultaneously to fall freely under gravity. After \(2\text{ s}\) the relative distance between them is :
4.9 m
19.6 m
9.8 m
39.2m

Solution:

Both bodies are released simultaneously and fall under gravity. Their acceleration is identical (\(g\)). Since their initial relative velocity is zero and relative acceleration is zero, their relative distance remains constant. Thus, after \(2\) s, the relative distance is still \(9.8\) m.

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