The motion of a particle is defined by the equations x = 4t 3 – 5t + 1 5t and y = 5t 2 – 15t,…

The motion of a particle is defined by the equations x = 4t 3 – 5t + 1 5t and y = 5t 2 – 15t, where x and y are expressed in millimeters and t is expressed in seconds. Determine the velocity and the acceleration when (a) t = 1 s, (b) t = 2 s.

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