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Kinetic energy when a object is dropped from certain distance

  1. May 17, 2005 #1
    Drop a 0.06kg egg from 0.5m above the frying pan.

    what is its kinetic energy when it hits the frying pan?

    what is its velocity the instant before it hits the pan?
     
  2. jcsd
  3. May 17, 2005 #2

    Doc Al

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    Staff: Mentor

    Hints:
    Considering energy: How much work does gravity do on the object as it falls?
    Considering kinematics: What's the acceleration of any freely falling body?
     
  4. May 17, 2005 #3
    I get the hint, 9.8 m/s2. But, how do I solve? Do i go:
    0.06x0.5 = .5(0.06) x Vsquared because GPE = KE, and then just cancel?
     
  5. May 17, 2005 #4

    Doc Al

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    Staff: Mentor

    Almost. GPE = KE --> [itex]mgh = 1/2mv^2[/itex]. (If you included units in your work, you'd realize that something was missing.)
     
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