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    pmw123456 Posts: 1, Reputation: 1
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    #1

    Apr 17, 2014, 08:44 AM
    Acceleration
    An astronaut is on the moon. He drops a hammer from a height of 3.2m and it takes 2.0s to hit the lunar landscape. What is the acceleration?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Apr 17, 2014, 09:08 AM
    Hint: d=(1/2)at^2
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