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Standard XII

Physics

Work Done When Force Is Varying

A position de...

Question

A position dependent force $F = 7 - 2 x + 3 x^{2}$ newton acts on a small body of mass $2 k g$ and displaces it from $x = 0$ to $x = 5$ . The work done in joule is :

70

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270

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35

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135

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Solution

The correct option is D $135$

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A position dependent force F=7−2x+3x2 newton acts on a small body of mass 2kg and displaces it from x=0 to x=5. The work done in joule is :

The correct option is D 135

A position dependent force $F = 7 - 2 x + 3 x^{2}$ newton acts on a small body of mass $2 k g$ and displaces it from $x = 0$ to $x = 5$ . The work done in joule is :

The correct option is D $135$