You were driving a car with velocity ‹ 28, 0, 14 › m/s. you quickly turned and braked, and your velocity became ‹ 21, 0, 18 › m/s. the mass of the car was 1100 kg.

(a) what was the (vector) change in momentum ? during this maneuver? pay attention to signs.
? = kg · m/s
(b) what was the (vector) impulse applied to the car by the ground?
(vector) impulse: n · s
(c) if the maneuver took 7 seconds, what was the the average (vector) force exerted on the car? (the net force is due to the ground and the earth; the y components of these forces cancel.)