ch07-p068 - 68. (a) In the work-kinetic energy theorem, we...

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68. (a) In the work-kinetic energy theorem, we include both the work due to an applied force W a and work done by gravity W g in order to find the latter quantity. 30 J (100 N)(1.8 m)cos 180 ag g KW W W Δ= + ¡
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