A particle of mass 2.0kg moves under the influence of the force F(x)=(−5x2+7x)N. If its speed at x=−4.0m is v=20.0m/s, w

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answerhappygod
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A particle of mass 2.0kg moves under the influence of the force F(x)=(−5x2+7x)N. If its speed at x=−4.0m is v=20.0m/s, w

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A particle of mass 2.0kg moves under the influence of the force
F(x)=(−5x2+7x)N. If its speed at x=−4.0m is v=20.0m/s, what is its
speed at x=4.0m?
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