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A particle travels along the circular path x2 +y-r, when the time t = 0 the particle its at-r meter and y =0 m. If the y components of the particles velocity is Vy 2r cos2t, determine: (a) the x and y components of its acceleration at any instant. (b) Draw the trajectory with the vector velocity and acceleration at t = π/4 sec. (c) calculate the average vector velocity between 0 and t/4 sec. (d) the distance travelled when t-: π/2 sec. (e) The angle made by the vector velocity and the vector acceleration when t π/6 sec.

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