problem06_32

University Physics with Modern Physics with Mastering Physics (11th Edition)

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6.32: The work you do with your changing force is xdx dx dx x F m N 0 . 3 ) N 0 . 20 ( ) ( 9 . 6 0 9 . 6 0 9 . 6 0 - - = 9 . 6 0 2 9 . 6 0 | ) 2 / )( m N 0 . 3 ( | ) N 0 . 20 ( x x - - = J 209 or J 4 . 209 m N 4 . 71 m N 138 - - = - - = The work is negative because the cow continues to advance as you vainly attempt to push
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