A Stationary 1

Multiple Choice

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/(ms) ², what is the speed of the object just after it comes away from the stick at t = 2.74 ms?

A) 3.3 m/s
B) 22 m/s
C) 3.7 m/s
D) 25 m/s