ITEMS The equation of motion is given for a particle by s(t) = 2t3 - 7t² + 4t +5 where s is in meters, and t is in seconds. Find: (a) The velocity function. PROG Score Comp (c) The acceleration at the first (positive) instant when the velocity is zero. (b) The acceleration function. # 3 (a) v(t) = 612-14t+4 (b) a(t) = 12t 14 (c) accel. = Submit answer F4 m/s² DELL 1444 F5 ►11 F6 F7 F8 F9 F10 F11 F12 205 $ 4 % & 7 8 6 W E R T Y S D EL F G H K

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