The only force acting on a 30 kg body as it moves along the, Ask an Expert

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The only force acting on a 3.0 kg body as it moves along the positive x axis has an x component Fx = -7x N, where x is in meters. The velocity of the body at x = 2.0 m is 11 m/s.

(a) What is the velocity of the body at x = 4.9 m?

(b) At what positive value of x will the body have a velocity of 4.2 m/s?

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