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What is the final position of the object if its initial position isx =0.40 {rm{m}} and the work done on it isequal to 0.21{rm J}What is the final position of the object if its initial position isx =0.40 {rm{m}} and the work done on it isequal to -0.19{rm{J}}

Answers

A) W= 0.8N *(0.5m-0.4m) + 0.4N *(0.75m-0.5m) + 0.2 *(x2-0.75m)
0.21J = 0.080+ 0.1 + 0.2x2
0.18 = 0.2x2
x2 = 0.90m.

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