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17 August, 23:26

A 3.8 kg object is lifted 12 meters. approximately how much work is performed during the lifting?

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  1. 18 August, 01:15
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    W = mgh.

    m is mass in kg,

    g is acceleration due to gravity = 9.81 m/s²,

    h is height = 12 m

    = 3.8 * 9.81 * 12

    = 447.336 Joules
  2. 18 August, 01:21
    0
    Work done is equivalent to potential energy.

    W = mgh. m is mass in kg, g is acceleration due to gravity = 9.81 m/s², h is height = 12 m

    = 3.8 * 9.81 * 12

    = 447.336 Joules
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