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physics

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A boy sitting on the edge of a vertical cliff fires a rock with a slingshot at a velocity of 16.45758956 m/s and an angle of 59.78 degrees above the horizontal.
The rock lands in a lake at the base of the cliff, a horizontal distance of 89.67 meters beyond the base of the cliff. How high is the cliff in meters?

i got an answer of y=-420.2599461m
is this right??

  • physics - ,

    No. How could a height be negative?
    Did you make up this problem? I makes not sense using ten significant figures.

    Show your work if you want your error to be found.

  • physics - ,

    The height of cliff is 560.4946206m

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