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Fireworks are fired at an angle of 82degrees with the horizontal. They are expected to explode about 100 m in the air, 4.8 secs after they are fired. What is the initial velocity of a shell fired from ground level.

I think I have to find the vertical and horizontal components first but I don't know where to go after I do so. Thanks for any help.

  • Math -

    use physics

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    9'1

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