At the peak of its trajectory, a 1.0 kg projectile moving horizontally at 15 m/s collides with a 2.0 kg projectile at the peak of a vertical trajectory. If the collision take 0.10 s, how good is the assumption that momentum is conserved during the collision? To find out, compare the change in momentum of the colliding. system with the system's total momentum. (Compare the magnitude and direction of the initial and final momentum)
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