Question

Two objects in a closed system collide while moving directly toward each other. Each has a mass of 1.00 kg and is moving at 1.80 m/s. What is the total momentum after the collision?(1 point) Responses 1.80 kg·m/s 1.80 kg · m/s 0.00 kg·m/s 0.00 kg·m/s 3.60 kg·m/s 3.60 kg·m/s 0.90 kg·m/s