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A piece of stone is dropped from the top...

A piece of stone is dropped from the top of a tower 90 m tall and at the same time another piece of stone is thrown upwards with a velocity of 30 `"m.s"^(-1)` from the base of the tower. When and where will the stone pieces meet?

Text Solution

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The correct Answer is:
after 3 s, 44.1 m below the top of tower
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Knowledge Check

  • A stone is thrown vertically upward with an initial velocity u from the top of a tower, reaches the ground with a velocity 3u. The height of the tower is

    A
    `(3u^2)g`
    B
    `(4u^2)/g`
    C
    `(6u^2)/g`
    D
    `(9u^2)/g`

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