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  1. A position dependent force, F = (7 – 2x + 3x2) N acts on a small body of mass 2 kg and displaces it from x = 0 to x = 5 m. Work done in joule is ​
    1. 35
    2. 70
    3. 135
    4. 270
Correct Option: C


= 7x - x2 + x3
5
 = 135 J
0


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