A stationary 2.17-kg object is struck by a stick. The object experiences a horizontal force given by F = at - bt 2, where t is the time in seconds from the instant the stick first contacts the object. If a = 1,500,000 N/s and b = 20,000,000 N/s2, what is the speed of the object just after it comes away from the stick at t = 2.55 x 10^-3 s?
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