Aparticle initially located at the origin has an acceleration of a 2.00j m/s2 and an initial velocity of v-6.00i m/s. (a) find the vector position of the particle at any time t (where t is measured in seconds). ti+ t2 j) m (b) find the velocity of the particle at any time t. i + tj) m/s (c) find the coordinates of the particle at t 5.00 s. (d) find the speed of the particle at t 5.00 s. m/s