A stationary 1.67-kg object is struck by a stick. The object experiences a horizontal force given by F = at - bt², where t is the time in milliseconds from the instant the stick first contacts the object. If a = 1500 N/(ms) and b = 20 N/(ms²), what is the speed of the object just after it comes away from the stick at t = 2.74 ms?
a. 22 m/s
b. 3.7 m/s
c. 25 m/s
d. 3.3 m/s