I'm a little confused about momentum and impulse. Its not a single problem but just how they relate. For example if a 2kg block moving at 3 m/s hits a 6 kg block, then it will move 1 m/s because momentum is conserved with 6 momentos on either side of the equation. If the impact time is 1 millisecond whats the impulse? I dont know how you get impulse from momentos. Impulse is force x delta time and Momentum is mass x velocity, but in this problem how do i get impulse using the fact that the system's momentum is 6 momentos.