An object accelerates at 2.2 m/s2 for 3.0 seconds. If the final velocity is 15m/s what was the initial velocity?
vi=vf−at=15−2.2⋅3=8.4 m/s.v_i=v_f-at=15-2.2·3=8.4\text{ m/s}.vi=vf−at=15−2.2⋅3=8.4 m/s.
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