Object 1 is moving along the x axis with an initial momentum +16 kg·m/s, where the + sign indicates that it is moving to the right. as the drawing shows, object 1 collides with a second object that is initially at rest. the collision is not head-on, so the objects move off in different directions after the collision. the net external force acting on the two-object system is zero. after the collision, object 1 has a momentum whose x component is +6 kg·m/s. what is the x-component of the momentum of object 2 after the collision?