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Homework Help: Projectile motion ( )

  1. Jan 3, 2010 #1
    projectile motion (URGENT!!!)

    1. The problem statement, all variables and given/known data

    A busy waitress slides a plate of apples along a counter to a hungry customer sitting near the end of the counter. The customer is not paying attention, and the plate falls to the ground horizontally at .84m/s. The counter is 1.34m high.

    Find time it took for plate to fall.
    Find how far it fell from the counter (delta x)
    find horizontal and vertical components of velocity before it hits the ground

    2. Relevant equations
    there are many.

    3. The attempt at a solution

    i found time which i think is .52s
    and since vx is constant the horizontal component is .84
    and i believe the vertical is 5.12 by (.52)*(9.8)

    please help on everything else!
  2. jcsd
  3. Jan 3, 2010 #2
    Re: projectile motion (URGENT!!!)

    so how fast was the projectile moving horizontally the entire time it was in the air?
    how much time did the projectile spend in the air?

    I believe you got answers for both of these. So if you know how fast it was going horizontally, and you know how long it was going that fast horizontally, then you can figure out how far (distance) the projectile went horizontally.
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