# A particle moves along the x – axis form x = 0 t x = 5m influence of force given by F = 7 – 2x + 3x2. Calculate the work done in doing so. CLASS - XI PHYSICS (Work, Energy and Power)

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by RameshJayaraman387

2014-10-11T22:32:44+05:30

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F = (7 - 2x + 3x²) N
x = 0 to 5m

Work done =
⇒ W = [7(5-0) - (5²-0) + (5³-0)]
⇒ W = 35 - 25 + 125
⇒ W = 135J
2014-10-12T10:48:24+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Work done = integrating F with proper limits

⇒

⇒ W = 35 - 20 + 125
⇒ W = 140 J