A stone is dropped from the top of a building. When it crosses a point 5 m...| Doubtify JEE
๐งช Kinematics – Motion in a Straight Line | Physics | JEE Mains
๐ Question:
A stone is dropped from the top of a building. When it crosses a point 5 m below the top, another stone starts to fall from a point 25 m below the top, and both stones reach the bottom of the building simultaneously. Find the height of the building.
(Take g = 10 m/s²)
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๐ง Solution (Image):
๐ฅ Video Solution:
๐ Why this Question is Important:
This is a classic conceptual question from Kinematics, commonly asked in JEE Mains and other engineering entrance exams.
It checks your understanding of relative motion, free fall, and time equations of motion – topics that are often mixed to form trick questions.
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