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In her physics lab, Jessica rolls a 11-g marble down a ramp and off the table with a horizontal velocity of 1.38 m/s. The marble falls in a cup placed 0.45 m from the table's edge. Find the table's height.

  • physics - ,

    Time of flight = t
    1.38 t = 0.45
    t = 0.326 s

    Now calculate how far the marble falls in 0.326 s. That is the table's height, H.

    H = (g/2)t^2

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