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    Speed of a Projected Stone

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    A stone is projected at a cliff of height h with an initial speed of 40.0 m/s, directed 60.0° above the horizontal. The stone hits the top of the cliff 6.10 s after it is launched. Calculate:

    a. the maximum altitude of the stone.

    b. the height of the cliff.

    c. the stone's speed just before impact.

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    Solution Preview

    Hi there,

    Thanks for letting me work on your question. Here is my answer:

    Horizontal speed: Vx=V*cos(60)=40*1/2=20m/s, it will remain ...

    Solution Summary

    The speed of a project stone is determined when the height of the cliff is given.