Solution of the D1 18. The body of mass m = 3 kg moves on a horizontal smooth surface along the x axis by the force, which depends on the projection of the time, and is 6Pi Fx = cos 2t. At the initial time x0 = 0 and the projection speed vx0 = 2 m / s. Determine the value of the x coordinate of the body at time t = 0,5Pi with.

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