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    17pajarita's Avatar
    17pajarita Posts: 2, Reputation: 1
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    #1

    Oct 22, 2012, 07:35 PM
    Work
    When using a hammer to drive nails into wood, gravitational potential energy (GPE) is involved in doing the work (besides the work of your muscles!). What are 2 ways in which GPE of hammers can be increased so that less work would be required of your muscles?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Oct 23, 2012, 05:43 AM
    Do you have anu thughts on this? If you consider that the gravitational potential energy of an object is given by PE=mgh, how can you play with m, g or h to increase PE?
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