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March 28, 2017

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A baseball is thrown such that it is in the air for 4 seconds and lands 100 m away. Find the initial vertical and horizontal components of the baseball's velocity.

  • Physics - ,

    horizontal:
    u ( 4 ) = 100
    u = 25 m/s^2

    vertical in air for 4 seconds
    so up for 2 seconds
    first up, stops at top
    v = Vi - 9.8 t
    0 = Vi - 9.8(2)
    Vi = 2(9.8) or about 20 m/s^2

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