Question: The rectangular coordinates of a particle which moves with curvilinear motion are given by x = 10,50t+1.00 - 0.25t and y = 5.94 +

The rectangular coordinates of a particle which moves with curvilinear motion are

The rectangular coordinates of a particle which moves with curvilinear motion are given by x = 10,50t+1.00 - 0.25t and y = 5.94 + 18.80t-2.8412, where x and y are in millimeters and the time t is in seconds, beginning from t = 0. Determine the velocity v and acceleration a of the particle when t=4s. Also, determine the first time that the velocity of the particle makes an angle of 30 with the positive x-axis. Answers: a + + S j) mm/s j) mm/s

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