george8396
16.04.2020 •
Physics
A balky cow is leaving the barn as you try harder and harder to push her back in. In coordinates with the origin at the barn door, the cow walks from x = 0 to x = 6.9 m as you apply a force with x-component F _ { x } = - [ 20.0 N + ( 3.0 N / m ) x ]F
x
=−[20.0N+(3.0N/m)x]. How much work does the force you apply do on the cow during this displacement?
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Ответ:
b.increase the area over which the person´s wight is distributed.