006 10.0 points The position of a toy locomotive moving on a straight track along the x-axis is given by the equation x = t³ - 6t² +9t,
where x is in meters and t is in seconds. The net force on the locomotive is equal to zero when t is equal to 1. t = 3 s 2. t = 5 s 3. t = 4 s 4. t = 0 s 5. t = 2 s
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