A stone is dropped from the top of a building. When it crosses a point m below the top, another stone starts to fall from a point m below the top. Both stones reach the bottom of building simultaneo

Question

A stone is dropped from the top of a building. When it crosses a point  m below the top, another stone starts to fall from a point  m below the top. Both stones reach the bottom of building simultaneously. The height of the building is:

Canvas Classes · Accepted Answer

🧠 Two Stones, One Final Time — Set Up Two Equations

Read the question carefully. Two stones fall from a building of unknown height . Stone 1 is dropped from the top. When it passes the -below-top mark (i.e.,  down), Stone 2 is released from the -below-top mark from rest. Both hit the ground at the same time. Find .

Key idea: at the moment stone 2 starts moving, stone 1 has already been falling for some time. Find stone 1's velocity at that moment (when it was  down). After that, both stones f

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