Two forces act on a 2.95 kg object, the gravitational force and a second, constant force. the object starts from rest and in 1.20 s is displaced (4.85î − 3.30ĵ) m. write the second force in unit vector notation. (enter your answer in kg · m/s2. assume the gravitational force acts in the −ĵ direction.)

answer:

besides the gravitational force, a 2.80kg object is subjected to one other constant force. the object starts from rest and in 1.20 s experiences a displacement of rest and in 1.20 s experiences a displacement of (4.20 m) ˆ i − (3.30 m) ˆ j, so, we assume constant acceleration in both the "i" and "j" directions.

explanation: